81701620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1$

素因数の和:111

約数の個数: 216

約数和(自身を含む): 240711912

約数和(自身を除く): 159010292

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 49, 52, 53, 55, 65, 70, 77, 91, 98, 106, 110, 121, 130, 140, 143, 154, 182, 196, 212, 220, 242, 245, 260, 265, 286, 308, 364, 371, 385, 455, 484, 490, 530, 539, 572, 583, 605, 637, 689, 715, 742, 770, 847, 910, 980, 1001, 1060, 1078, 1166, 1210, 1274, 1378, 1430, 1484, 1540, 1573, 1694, 1820, 1855, 2002, 2156, 2332, 2420, 2548, 2597, 2695, 2756, 2860, 2915, 3146, 3185, 3388, 3445, 3710, 4004, 4081, 4235, 4823, 5005, 5194, 5390, 5830, 5929, 6292, 6370, 6413, 6890, 7007, 7420, 7579, 7865, 8162, 8470, 9646, 10010, 10388, 10780, 11011, 11660, 11858, 12740, 12826, 12985, 13780, 14014, 15158, 15730, 16324, 16940, 19292, 20020, 20405, 22022, 23716, 24115, 25652, 25970, 28028, 28567, 29645, 30316, 31460, 32065, 33761, 35035, 37895, 40810, 44044, 44891, 48230, 51940, 53053, 55055, 57134, 59290, 64130, 67522, 70070, 75790, 77077, 81620, 83369, 89782, 96460, 106106, 110110, 114268, 118580, 128260, 135044, 140140, 142835, 151580, 154154, 166738, 168805, 179564, 212212, 220220, 224455, 265265, 285670, 308308, 314237, 333476, 337610, 371371, 385385, 416845, 448910, 530530, 571340, 583583, 628474, 675220, 742742, 770770, 833690, 897820, 1061060, 1167166, 1256948, 1485484, 1541540, 1571185, 1667380, 1856855, 2334332, 2917915, 3142370, 3713710, 4085081, 5835830, 6284740, 7427420, 8170162, 11671660, 16340324, 20425405, 40850810, 81701620]

約数ペア:

[(1, 81701620), (2, 40850810), (4, 20425405), (5, 16340324), (7, 11671660), (10, 8170162), (11, 7427420), (13, 6284740), (14, 5835830), (20, 4085081), (22, 3713710), (26, 3142370), (28, 2917915), (35, 2334332), (44, 1856855), (49, 1667380), (52, 1571185), (53, 1541540), (55, 1485484), (65, 1256948), (70, 1167166), (77, 1061060), (91, 897820), (98, 833690), (106, 770770), (110, 742742), (121, 675220), (130, 628474), (140, 583583), (143, 571340), (154, 530530), (182, 448910), (196, 416845), (212, 385385), (220, 371371), (242, 337610), (245, 333476), (260, 314237), (265, 308308), (286, 285670), (308, 265265), (364, 224455), (371, 220220), (385, 212212), (455, 179564), (484, 168805), (490, 166738), (530, 154154), (539, 151580), (572, 142835), (583, 140140), (605, 135044), (637, 128260), (689, 118580), (715, 114268), (742, 110110), (770, 106106), (847, 96460), (910, 89782), (980, 83369), (1001, 81620), (1060, 77077), (1078, 75790), (1166, 70070), (1210, 67522), (1274, 64130), (1378, 59290), (1430, 57134), (1484, 55055), (1540, 53053), (1573, 51940), (1694, 48230), (1820, 44891), (1855, 44044), (2002, 40810), (2156, 37895), (2332, 35035), (2420, 33761), (2548, 32065), (2597, 31460), (2695, 30316), (2756, 29645), (2860, 28567), (2915, 28028), (3146, 25970), (3185, 25652), (3388, 24115), (3445, 23716), (3710, 22022), (4004, 20405), (4081, 20020), (4235, 19292), (4823, 16940), (5005, 16324), (5194, 15730), (5390, 15158), (5830, 14014), (5929, 13780), (6292, 12985), (6370, 12826), (6413, 12740), (6890, 11858), (7007, 11660), (7420, 11011), (7579, 10780), (7865, 10388), (8162, 10010), (8470, 9646)]