28611660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{563}}^1$

素因数の和:604

約数の個数: 144

約数和(自身を含む): 100816128

約数和(自身を除く): 72204468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 121, 132, 140, 154, 165, 210, 220, 231, 242, 308, 330, 363, 385, 420, 462, 484, 563, 605, 660, 726, 770, 847, 924, 1126, 1155, 1210, 1452, 1540, 1689, 1694, 1815, 2252, 2310, 2420, 2541, 2815, 3378, 3388, 3630, 3941, 4235, 4620, 5082, 5630, 6193, 6756, 7260, 7882, 8445, 8470, 10164, 11260, 11823, 12386, 12705, 15764, 16890, 16940, 18579, 19705, 23646, 24772, 25410, 30965, 33780, 37158, 39410, 43351, 47292, 50820, 59115, 61930, 68123, 74316, 78820, 86702, 92895, 118230, 123860, 130053, 136246, 173404, 185790, 204369, 216755, 236460, 260106, 272492, 340615, 371580, 408738, 433510, 476861, 520212, 650265, 681230, 817476, 867020, 953722, 1021845, 1300530, 1362460, 1430583, 1907444, 2043690, 2384305, 2601060, 2861166, 4087380, 4768610, 5722332, 7152915, 9537220, 14305830, 28611660]

約数ペア:

[(1, 28611660), (2, 14305830), (3, 9537220), (4, 7152915), (5, 5722332), (6, 4768610), (7, 4087380), (10, 2861166), (11, 2601060), (12, 2384305), (14, 2043690), (15, 1907444), (20, 1430583), (21, 1362460), (22, 1300530), (28, 1021845), (30, 953722), (33, 867020), (35, 817476), (42, 681230), (44, 650265), (55, 520212), (60, 476861), (66, 433510), (70, 408738), (77, 371580), (84, 340615), (105, 272492), (110, 260106), (121, 236460), (132, 216755), (140, 204369), (154, 185790), (165, 173404), (210, 136246), (220, 130053), (231, 123860), (242, 118230), (308, 92895), (330, 86702), (363, 78820), (385, 74316), (420, 68123), (462, 61930), (484, 59115), (563, 50820), (605, 47292), (660, 43351), (726, 39410), (770, 37158), (847, 33780), (924, 30965), (1126, 25410), (1155, 24772), (1210, 23646), (1452, 19705), (1540, 18579), (1689, 16940), (1694, 16890), (1815, 15764), (2252, 12705), (2310, 12386), (2420, 11823), (2541, 11260), (2815, 10164), (3378, 8470), (3388, 8445), (3630, 7882), (3941, 7260), (4235, 6756), (4620, 6193), (5082, 5630)]