25602040

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 60147360

約数和(自身を除く): 34545320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 67, 82, 134, 164, 205, 233, 268, 328, 335, 410, 466, 536, 670, 820, 932, 1165, 1340, 1640, 1864, 2330, 2680, 2747, 4660, 5494, 9320, 9553, 10988, 13735, 15611, 19106, 21976, 27470, 31222, 38212, 47765, 54940, 62444, 76424, 78055, 95530, 109880, 124888, 156110, 191060, 312220, 382120, 624440, 640051, 1280102, 2560204, 3200255, 5120408, 6400510, 12801020, 25602040]

約数ペア:

[(1, 25602040), (2, 12801020), (4, 6400510), (5, 5120408), (8, 3200255), (10, 2560204), (20, 1280102), (40, 640051), (41, 624440), (67, 382120), (82, 312220), (134, 191060), (164, 156110), (205, 124888), (233, 109880), (268, 95530), (328, 78055), (335, 76424), (410, 62444), (466, 54940), (536, 47765), (670, 38212), (820, 31222), (932, 27470), (1165, 21976), (1340, 19106), (1640, 15611), (1864, 13735), (2330, 10988), (2680, 9553), (2747, 9320), (4660, 5494)]