25448720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{239}}^1$

素因数の和:285

約数の個数: 80

約数和(自身を含む): 65352960

約数和(自身を除く): 39904240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 239, 242, 440, 478, 484, 605, 880, 956, 968, 1195, 1210, 1331, 1912, 1936, 2390, 2420, 2629, 2662, 3824, 4780, 4840, 5258, 5324, 6655, 9560, 9680, 10516, 10648, 13145, 13310, 19120, 21032, 21296, 26290, 26620, 28919, 42064, 52580, 53240, 57838, 105160, 106480, 115676, 144595, 210320, 231352, 289190, 318109, 462704, 578380, 636218, 1156760, 1272436, 1590545, 2313520, 2544872, 3181090, 5089744, 6362180, 12724360, 25448720]

約数ペア:

[(1, 25448720), (2, 12724360), (4, 6362180), (5, 5089744), (8, 3181090), (10, 2544872), (11, 2313520), (16, 1590545), (20, 1272436), (22, 1156760), (40, 636218), (44, 578380), (55, 462704), (80, 318109), (88, 289190), (110, 231352), (121, 210320), (176, 144595), (220, 115676), (239, 106480), (242, 105160), (440, 57838), (478, 53240), (484, 52580), (605, 42064), (880, 28919), (956, 26620), (968, 26290), (1195, 21296), (1210, 21032), (1331, 19120), (1912, 13310), (1936, 13145), (2390, 10648), (2420, 10516), (2629, 9680), (2662, 9560), (3824, 6655), (4780, 5324), (4840, 5258)]