25491720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2689}}^1$

素因数の和:2782

約数の個数: 64

約数和(自身を含む): 77472000

約数和(自身を除く): 51980280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 158, 237, 316, 395, 474, 632, 790, 948, 1185, 1580, 1896, 2370, 2689, 3160, 4740, 5378, 8067, 9480, 10756, 13445, 16134, 21512, 26890, 32268, 40335, 53780, 64536, 80670, 107560, 161340, 212431, 322680, 424862, 637293, 849724, 1062155, 1274586, 1699448, 2124310, 2549172, 3186465, 4248620, 5098344, 6372930, 8497240, 12745860, 25491720]

約数ペア:

[(1, 25491720), (2, 12745860), (3, 8497240), (4, 6372930), (5, 5098344), (6, 4248620), (8, 3186465), (10, 2549172), (12, 2124310), (15, 1699448), (20, 1274586), (24, 1062155), (30, 849724), (40, 637293), (60, 424862), (79, 322680), (120, 212431), (158, 161340), (237, 107560), (316, 80670), (395, 64536), (474, 53780), (632, 40335), (790, 32268), (948, 26890), (1185, 21512), (1580, 16134), (1896, 13445), (2370, 10756), (2689, 9480), (3160, 8067), (4740, 5378)]