19715580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{379}}^1$

素因数の和:428

約数の個数: 108

約数和(自身を含む): 63696360

約数和(自身を除く): 43980780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 289, 306, 340, 379, 510, 578, 612, 758, 765, 867, 1020, 1137, 1156, 1445, 1516, 1530, 1734, 1895, 2274, 2601, 2890, 3060, 3411, 3468, 3790, 4335, 4548, 5202, 5685, 5780, 6443, 6822, 7580, 8670, 10404, 11370, 12886, 13005, 13644, 17055, 17340, 19329, 22740, 25772, 26010, 32215, 34110, 38658, 52020, 57987, 64430, 68220, 77316, 96645, 109531, 115974, 128860, 193290, 219062, 231948, 289935, 328593, 386580, 438124, 547655, 579870, 657186, 985779, 1095310, 1159740, 1314372, 1642965, 1971558, 2190620, 3285930, 3943116, 4928895, 6571860, 9857790, 19715580]

約数ペア:

[(1, 19715580), (2, 9857790), (3, 6571860), (4, 4928895), (5, 3943116), (6, 3285930), (9, 2190620), (10, 1971558), (12, 1642965), (15, 1314372), (17, 1159740), (18, 1095310), (20, 985779), (30, 657186), (34, 579870), (36, 547655), (45, 438124), (51, 386580), (60, 328593), (68, 289935), (85, 231948), (90, 219062), (102, 193290), (153, 128860), (170, 115974), (180, 109531), (204, 96645), (255, 77316), (289, 68220), (306, 64430), (340, 57987), (379, 52020), (510, 38658), (578, 34110), (612, 32215), (758, 26010), (765, 25772), (867, 22740), (1020, 19329), (1137, 17340), (1156, 17055), (1445, 13644), (1516, 13005), (1530, 12886), (1734, 11370), (1895, 10404), (2274, 8670), (2601, 7580), (2890, 6822), (3060, 6443), (3411, 5780), (3468, 5685), (3790, 5202), (4335, 4548)]