20018775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2243}}^1$

素因数の和:2280

約数の個数: 48

約数和(自身を含む): 40068864

約数和(自身を除く): 20050089

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 51, 75, 85, 105, 119, 175, 255, 357, 425, 525, 595, 1275, 1785, 2243, 2975, 6729, 8925, 11215, 15701, 33645, 38131, 47103, 56075, 78505, 114393, 168225, 190655, 235515, 266917, 392525, 571965, 800751, 953275, 1177575, 1334585, 2859825, 4003755, 6672925, 20018775]

約数ペア:

[(1, 20018775), (3, 6672925), (5, 4003755), (7, 2859825), (15, 1334585), (17, 1177575), (21, 953275), (25, 800751), (35, 571965), (51, 392525), (75, 266917), (85, 235515), (105, 190655), (119, 168225), (175, 114393), (255, 78505), (357, 56075), (425, 47103), (525, 38131), (595, 33645), (1275, 15701), (1785, 11215), (2243, 8925), (2975, 6729)]