17987850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{563}}^1$

素因数の和:652

約数の個数: 72

約数和(自身を含む): 49095072

約数和(自身を除く): 31107222

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 71, 75, 90, 142, 150, 213, 225, 355, 426, 450, 563, 639, 710, 1065, 1126, 1278, 1689, 1775, 2130, 2815, 3195, 3378, 3550, 5067, 5325, 5630, 6390, 8445, 10134, 10650, 14075, 15975, 16890, 25335, 28150, 31950, 39973, 42225, 50670, 79946, 84450, 119919, 126675, 199865, 239838, 253350, 359757, 399730, 599595, 719514, 999325, 1199190, 1798785, 1998650, 2997975, 3597570, 5995950, 8993925, 17987850]

約数ペア:

[(1, 17987850), (2, 8993925), (3, 5995950), (5, 3597570), (6, 2997975), (9, 1998650), (10, 1798785), (15, 1199190), (18, 999325), (25, 719514), (30, 599595), (45, 399730), (50, 359757), (71, 253350), (75, 239838), (90, 199865), (142, 126675), (150, 119919), (213, 84450), (225, 79946), (355, 50670), (426, 42225), (450, 39973), (563, 31950), (639, 28150), (710, 25335), (1065, 16890), (1126, 15975), (1278, 14075), (1689, 10650), (1775, 10134), (2130, 8445), (2815, 6390), (3195, 5630), (3378, 5325), (3550, 5067)]