221373180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1321}}^1$

素因数の和:1369

約数の個数: 216

約数和(自身を含む): 822865680

約数和(自身を除く): 601492500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 49, 57, 60, 63, 70, 76, 84, 90, 95, 98, 105, 114, 126, 133, 140, 147, 171, 180, 190, 196, 210, 228, 245, 252, 266, 285, 294, 315, 342, 380, 399, 420, 441, 490, 532, 570, 588, 630, 665, 684, 735, 798, 855, 882, 931, 980, 1140, 1197, 1260, 1321, 1330, 1470, 1596, 1710, 1764, 1862, 1995, 2205, 2394, 2642, 2660, 2793, 2940, 3420, 3724, 3963, 3990, 4410, 4655, 4788, 5284, 5586, 5985, 6605, 7926, 7980, 8379, 8820, 9247, 9310, 11172, 11889, 11970, 13210, 13965, 15852, 16758, 18494, 18620, 19815, 23778, 23940, 25099, 26420, 27741, 27930, 33516, 36988, 39630, 41895, 46235, 47556, 50198, 55482, 55860, 59445, 64729, 75297, 79260, 83223, 83790, 92470, 100396, 110964, 118890, 125495, 129458, 138705, 150594, 166446, 167580, 175693, 184940, 194187, 225891, 237780, 250990, 258916, 277410, 301188, 323645, 332892, 351386, 376485, 388374, 416115, 451782, 501980, 527079, 554820, 582561, 647290, 702772, 752970, 776748, 832230, 878465, 903564, 970935, 1054158, 1129455, 1165122, 1229851, 1294580, 1505940, 1581237, 1664460, 1756930, 1941870, 2108316, 2258910, 2330244, 2459702, 2635395, 2912805, 3162474, 3513860, 3689553, 3883740, 4517820, 4919404, 5270790, 5825610, 6149255, 6324948, 7379106, 7906185, 10541580, 11068659, 11651220, 12298510, 14758212, 15812370, 18447765, 22137318, 24597020, 31624740, 36895530, 44274636, 55343295, 73791060, 110686590, 221373180]

約数ペア:

[(1, 221373180), (2, 110686590), (3, 73791060), (4, 55343295), (5, 44274636), (6, 36895530), (7, 31624740), (9, 24597020), (10, 22137318), (12, 18447765), (14, 15812370), (15, 14758212), (18, 12298510), (19, 11651220), (20, 11068659), (21, 10541580), (28, 7906185), (30, 7379106), (35, 6324948), (36, 6149255), (38, 5825610), (42, 5270790), (45, 4919404), (49, 4517820), (57, 3883740), (60, 3689553), (63, 3513860), (70, 3162474), (76, 2912805), (84, 2635395), (90, 2459702), (95, 2330244), (98, 2258910), (105, 2108316), (114, 1941870), (126, 1756930), (133, 1664460), (140, 1581237), (147, 1505940), (171, 1294580), (180, 1229851), (190, 1165122), (196, 1129455), (210, 1054158), (228, 970935), (245, 903564), (252, 878465), (266, 832230), (285, 776748), (294, 752970), (315, 702772), (342, 647290), (380, 582561), (399, 554820), (420, 527079), (441, 501980), (490, 451782), (532, 416115), (570, 388374), (588, 376485), (630, 351386), (665, 332892), (684, 323645), (735, 301188), (798, 277410), (855, 258916), (882, 250990), (931, 237780), (980, 225891), (1140, 194187), (1197, 184940), (1260, 175693), (1321, 167580), (1330, 166446), (1470, 150594), (1596, 138705), (1710, 129458), (1764, 125495), (1862, 118890), (1995, 110964), (2205, 100396), (2394, 92470), (2642, 83790), (2660, 83223), (2793, 79260), (2940, 75297), (3420, 64729), (3724, 59445), (3963, 55860), (3990, 55482), (4410, 50198), (4655, 47556), (4788, 46235), (5284, 41895), (5586, 39630), (5985, 36988), (6605, 33516), (7926, 27930), (7980, 27741), (8379, 26420), (8820, 25099), (9247, 23940), (9310, 23778), (11172, 19815), (11889, 18620), (11970, 18494), (13210, 16758), (13965, 15852)]