20124863925

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{719}}^1\times {\mathrm{757}}^1$

素因数の和:1535

約数の個数: 96

約数和(自身を含む): 36544089600

約数和(自身を除く): 16419225675

約数列:

[1, 3, 5, 15, 17, 25, 29, 51, 75, 85, 87, 145, 255, 425, 435, 493, 719, 725, 757, 1275, 1479, 2157, 2175, 2271, 2465, 3595, 3785, 7395, 10785, 11355, 12223, 12325, 12869, 17975, 18925, 20851, 21953, 36669, 36975, 38607, 53925, 56775, 61115, 62553, 64345, 65859, 104255, 109765, 183345, 193035, 305575, 312765, 321725, 329295, 354467, 373201, 521275, 544283, 548825, 916725, 965175, 1063401, 1119603, 1563825, 1632849, 1646475, 1772335, 1866005, 2721415, 5317005, 5598015, 8164245, 8861675, 9252811, 9330025, 13607075, 15784207, 26585025, 27758433, 27990075, 40821225, 46264055, 47352621, 78921035, 138792165, 231320275, 236763105, 268331519, 394605175, 693960825, 804994557, 1183815525, 1341657595, 4024972785, 6708287975, 20124863925]

約数ペア:

[(1, 20124863925), (3, 6708287975), (5, 4024972785), (15, 1341657595), (17, 1183815525), (25, 804994557), (29, 693960825), (51, 394605175), (75, 268331519), (85, 236763105), (87, 231320275), (145, 138792165), (255, 78921035), (425, 47352621), (435, 46264055), (493, 40821225), (719, 27990075), (725, 27758433), (757, 26585025), (1275, 15784207), (1479, 13607075), (2157, 9330025), (2175, 9252811), (2271, 8861675), (2465, 8164245), (3595, 5598015), (3785, 5317005), (7395, 2721415), (10785, 1866005), (11355, 1772335), (12223, 1646475), (12325, 1632849), (12869, 1563825), (17975, 1119603), (18925, 1063401), (20851, 965175), (21953, 916725), (36669, 548825), (36975, 544283), (38607, 521275), (53925, 373201), (56775, 354467), (61115, 329295), (62553, 321725), (64345, 312765), (65859, 305575), (104255, 193035), (109765, 183345)]