399045950

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{2549}}^1$

素因数の和:2693

約数の個数: 48

約数和(自身を含む): 774057600

約数和(自身を除く): 375011650

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 101, 155, 202, 310, 505, 775, 1010, 1550, 2525, 2549, 3131, 5050, 5098, 6262, 12745, 15655, 25490, 31310, 63725, 78275, 79019, 127450, 156550, 158038, 257449, 395095, 514898, 790190, 1287245, 1975475, 2574490, 3950950, 6436225, 7980919, 12872450, 15961838, 39904595, 79809190, 199522975, 399045950]

約数ペア:

[(1, 399045950), (2, 199522975), (5, 79809190), (10, 39904595), (25, 15961838), (31, 12872450), (50, 7980919), (62, 6436225), (101, 3950950), (155, 2574490), (202, 1975475), (310, 1287245), (505, 790190), (775, 514898), (1010, 395095), (1550, 257449), (2525, 158038), (2549, 156550), (3131, 127450), (5050, 79019), (5098, 78275), (6262, 63725), (12745, 31310), (15655, 25490)]