28158375

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{631}}^1$

素因数の和:673

約数の個数: 64

約数和(自身を含む): 56788992

約数和(自身を除く): 28630617

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 51, 75, 85, 105, 119, 125, 175, 255, 357, 375, 425, 525, 595, 631, 875, 1275, 1785, 1893, 2125, 2625, 2975, 3155, 4417, 6375, 8925, 9465, 10727, 13251, 14875, 15775, 22085, 32181, 44625, 47325, 53635, 66255, 75089, 78875, 110425, 160905, 225267, 236625, 268175, 331275, 375445, 552125, 804525, 1126335, 1340875, 1656375, 1877225, 4022625, 5631675, 9386125, 28158375]

約数ペア:

[(1, 28158375), (3, 9386125), (5, 5631675), (7, 4022625), (15, 1877225), (17, 1656375), (21, 1340875), (25, 1126335), (35, 804525), (51, 552125), (75, 375445), (85, 331275), (105, 268175), (119, 236625), (125, 225267), (175, 160905), (255, 110425), (357, 78875), (375, 75089), (425, 66255), (525, 53635), (595, 47325), (631, 44625), (875, 32181), (1275, 22085), (1785, 15775), (1893, 14875), (2125, 13251), (2625, 10727), (2975, 9465), (3155, 8925), (4417, 6375)]