19967220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:111

約数の個数: 288

約数和(自身を含む): 79252992

約数和(自身を除く): 59285772

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 23, 26, 28, 30, 35, 36, 39, 42, 45, 46, 52, 53, 60, 63, 65, 69, 70, 78, 84, 90, 91, 92, 105, 106, 115, 117, 126, 130, 138, 140, 156, 159, 161, 180, 182, 195, 207, 210, 212, 230, 234, 252, 260, 265, 273, 276, 299, 315, 318, 322, 345, 364, 371, 390, 414, 420, 455, 460, 468, 477, 483, 530, 546, 585, 598, 630, 636, 644, 689, 690, 742, 780, 795, 805, 819, 828, 897, 910, 954, 966, 1035, 1060, 1092, 1113, 1170, 1196, 1219, 1260, 1365, 1378, 1380, 1449, 1484, 1495, 1590, 1610, 1638, 1794, 1820, 1855, 1908, 1932, 2067, 2070, 2093, 2226, 2340, 2385, 2415, 2438, 2691, 2730, 2756, 2898, 2990, 3180, 3220, 3276, 3339, 3445, 3588, 3657, 3710, 4095, 4134, 4140, 4186, 4452, 4485, 4770, 4823, 4830, 4876, 5382, 5460, 5565, 5796, 5980, 6095, 6201, 6279, 6678, 6890, 7245, 7314, 7420, 8190, 8268, 8372, 8533, 8970, 9540, 9646, 9660, 10335, 10465, 10764, 10971, 11130, 12190, 12402, 12558, 13356, 13455, 13780, 14469, 14490, 14628, 15847, 16380, 16695, 17066, 17940, 18285, 18837, 19292, 20670, 20930, 21942, 22260, 24115, 24380, 24804, 25116, 25599, 26910, 28938, 28980, 31005, 31395, 31694, 33390, 34132, 36570, 37674, 41340, 41860, 42665, 43407, 43884, 47541, 48230, 51198, 53820, 54855, 57876, 62010, 62790, 63388, 66780, 72345, 73140, 75348, 76797, 79235, 85330, 86814, 94185, 95082, 96460, 102396, 109710, 110929, 124020, 125580, 127995, 142623, 144690, 153594, 158470, 170660, 173628, 188370, 190164, 217035, 219420, 221858, 237705, 255990, 285246, 289380, 307188, 316940, 332787, 376740, 383985, 434070, 443716, 475410, 511980, 554645, 570492, 665574, 713115, 767970, 868140, 950820, 998361, 1109290, 1331148, 1426230, 1535940, 1663935, 1996722, 2218580, 2852460, 3327870, 3993444, 4991805, 6655740, 9983610, 19967220]

約数ペア:

[(1, 19967220), (2, 9983610), (3, 6655740), (4, 4991805), (5, 3993444), (6, 3327870), (7, 2852460), (9, 2218580), (10, 1996722), (12, 1663935), (13, 1535940), (14, 1426230), (15, 1331148), (18, 1109290), (20, 998361), (21, 950820), (23, 868140), (26, 767970), (28, 713115), (30, 665574), (35, 570492), (36, 554645), (39, 511980), (42, 475410), (45, 443716), (46, 434070), (52, 383985), (53, 376740), (60, 332787), (63, 316940), (65, 307188), (69, 289380), (70, 285246), (78, 255990), (84, 237705), (90, 221858), (91, 219420), (92, 217035), (105, 190164), (106, 188370), (115, 173628), (117, 170660), (126, 158470), (130, 153594), (138, 144690), (140, 142623), (156, 127995), (159, 125580), (161, 124020), (180, 110929), (182, 109710), (195, 102396), (207, 96460), (210, 95082), (212, 94185), (230, 86814), (234, 85330), (252, 79235), (260, 76797), (265, 75348), (273, 73140), (276, 72345), (299, 66780), (315, 63388), (318, 62790), (322, 62010), (345, 57876), (364, 54855), (371, 53820), (390, 51198), (414, 48230), (420, 47541), (455, 43884), (460, 43407), (468, 42665), (477, 41860), (483, 41340), (530, 37674), (546, 36570), (585, 34132), (598, 33390), (630, 31694), (636, 31395), (644, 31005), (689, 28980), (690, 28938), (742, 26910), (780, 25599), (795, 25116), (805, 24804), (819, 24380), (828, 24115), (897, 22260), (910, 21942), (954, 20930), (966, 20670), (1035, 19292), (1060, 18837), (1092, 18285), (1113, 17940), (1170, 17066), (1196, 16695), (1219, 16380), (1260, 15847), (1365, 14628), (1378, 14490), (1380, 14469), (1449, 13780), (1484, 13455), (1495, 13356), (1590, 12558), (1610, 12402), (1638, 12190), (1794, 11130), (1820, 10971), (1855, 10764), (1908, 10465), (1932, 10335), (2067, 9660), (2070, 9646), (2093, 9540), (2226, 8970), (2340, 8533), (2385, 8372), (2415, 8268), (2438, 8190), (2691, 7420), (2730, 7314), (2756, 7245), (2898, 6890), (2990, 6678), (3180, 6279), (3220, 6201), (3276, 6095), (3339, 5980), (3445, 5796), (3588, 5565), (3657, 5460), (3710, 5382), (4095, 4876), (4134, 4830), (4140, 4823), (4186, 4770), (4452, 4485)]