18911680

素因数分解:

$2^6\times 5^1\times {\mathrm{113}}^1\times {\mathrm{523}}^1$

素因数の和:653

約数の個数: 56

約数和(自身を含む): 45518832

約数和(自身を除く): 26607152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 160, 226, 320, 452, 523, 565, 904, 1046, 1130, 1808, 2092, 2260, 2615, 3616, 4184, 4520, 5230, 7232, 8368, 9040, 10460, 16736, 18080, 20920, 33472, 36160, 41840, 59099, 83680, 118198, 167360, 236396, 295495, 472792, 590990, 945584, 1181980, 1891168, 2363960, 3782336, 4727920, 9455840, 18911680]

約数ペア:

[(1, 18911680), (2, 9455840), (4, 4727920), (5, 3782336), (8, 2363960), (10, 1891168), (16, 1181980), (20, 945584), (32, 590990), (40, 472792), (64, 295495), (80, 236396), (113, 167360), (160, 118198), (226, 83680), (320, 59099), (452, 41840), (523, 36160), (565, 33472), (904, 20920), (1046, 18080), (1130, 16736), (1808, 10460), (2092, 9040), (2260, 8368), (2615, 7232), (3616, 5230), (4184, 4520)]