25575040

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:557

約数の個数: 64

約数和(自身を含む): 61965000

約数和(自身を除く): 36389960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 320, 356, 445, 449, 640, 712, 890, 898, 1424, 1780, 1796, 2245, 2848, 3560, 3592, 4490, 5696, 7120, 7184, 8980, 11392, 14240, 14368, 17960, 28480, 28736, 35920, 39961, 56960, 57472, 71840, 79922, 143680, 159844, 199805, 287360, 319688, 399610, 639376, 799220, 1278752, 1598440, 2557504, 3196880, 5115008, 6393760, 12787520, 25575040]

約数ペア:

[(1, 25575040), (2, 12787520), (4, 6393760), (5, 5115008), (8, 3196880), (10, 2557504), (16, 1598440), (20, 1278752), (32, 799220), (40, 639376), (64, 399610), (80, 319688), (89, 287360), (128, 199805), (160, 159844), (178, 143680), (320, 79922), (356, 71840), (445, 57472), (449, 56960), (640, 39961), (712, 35920), (890, 28736), (898, 28480), (1424, 17960), (1780, 14368), (1796, 14240), (2245, 11392), (2848, 8980), (3560, 7184), (3592, 7120), (4490, 5696)]