25881080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10607}}^1$

素因数の和:10679

約数の個数: 32

約数和(自身を含む): 59192640

約数和(自身を除く): 33311560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 10607, 21214, 42428, 53035, 84856, 106070, 212140, 424280, 647027, 1294054, 2588108, 3235135, 5176216, 6470270, 12940540, 25881080]

約数ペア:

[(1, 25881080), (2, 12940540), (4, 6470270), (5, 5176216), (8, 3235135), (10, 2588108), (20, 1294054), (40, 647027), (61, 424280), (122, 212140), (244, 106070), (305, 84856), (488, 53035), (610, 42428), (1220, 21214), (2440, 10607)]