26031880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{389}}^1$

素因数の和:646

約数の個数: 64

約数和(自身を含む): 67392000

約数和(自身を除く): 41360120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 239, 280, 389, 478, 778, 956, 1195, 1556, 1673, 1912, 1945, 2390, 2723, 3112, 3346, 3890, 4780, 5446, 6692, 7780, 8365, 9560, 10892, 13384, 13615, 15560, 16730, 21784, 27230, 33460, 54460, 66920, 92971, 108920, 185942, 371884, 464855, 650797, 743768, 929710, 1301594, 1859420, 2603188, 3253985, 3718840, 5206376, 6507970, 13015940, 26031880]

約数ペア:

[(1, 26031880), (2, 13015940), (4, 6507970), (5, 5206376), (7, 3718840), (8, 3253985), (10, 2603188), (14, 1859420), (20, 1301594), (28, 929710), (35, 743768), (40, 650797), (56, 464855), (70, 371884), (140, 185942), (239, 108920), (280, 92971), (389, 66920), (478, 54460), (778, 33460), (956, 27230), (1195, 21784), (1556, 16730), (1673, 15560), (1912, 13615), (1945, 13384), (2390, 10892), (2723, 9560), (3112, 8365), (3346, 7780), (3890, 6692), (4780, 5446)]