20163218175

素因数分解:

$3^2\times 5^2\times {\mathrm{137}}^1\times {\mathrm{163}}^1\times {\mathrm{4013}}^1$

素因数の和:4329

約数の個数: 72

約数和(自身を含む): 36610473744

約数和(自身を除く): 16447255569

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 137, 163, 225, 411, 489, 685, 815, 1233, 1467, 2055, 2445, 3425, 4013, 4075, 6165, 7335, 10275, 12039, 12225, 20065, 22331, 30825, 36117, 36675, 60195, 66993, 100325, 111655, 180585, 200979, 300975, 334965, 549781, 558275, 654119, 902925, 1004895, 1649343, 1674825, 1962357, 2748905, 3270595, 4948029, 5024475, 5887071, 8246715, 9811785, 13744525, 16352975, 24740145, 29435355, 41233575, 49058925, 89614303, 123700725, 147176775, 268842909, 448071515, 806528727, 1344214545, 2240357575, 4032643635, 6721072725, 20163218175]

約数ペア:

[(1, 20163218175), (3, 6721072725), (5, 4032643635), (9, 2240357575), (15, 1344214545), (25, 806528727), (45, 448071515), (75, 268842909), (137, 147176775), (163, 123700725), (225, 89614303), (411, 49058925), (489, 41233575), (685, 29435355), (815, 24740145), (1233, 16352975), (1467, 13744525), (2055, 9811785), (2445, 8246715), (3425, 5887071), (4013, 5024475), (4075, 4948029), (6165, 3270595), (7335, 2748905), (10275, 1962357), (12039, 1674825), (12225, 1649343), (20065, 1004895), (22331, 902925), (30825, 654119), (36117, 558275), (36675, 549781), (60195, 334965), (66993, 300975), (100325, 200979), (111655, 180585)]