18361820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 22280740

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 179, 223, 230, 358, 446, 460, 716, 892, 895, 1115, 1790, 2230, 3580, 4117, 4460, 5129, 8234, 10258, 16468, 20516, 20585, 25645, 39917, 41170, 51290, 79834, 82340, 102580, 159668, 199585, 399170, 798340, 918091, 1836182, 3672364, 4590455, 9180910, 18361820]

約数ペア:

[(1, 18361820), (2, 9180910), (4, 4590455), (5, 3672364), (10, 1836182), (20, 918091), (23, 798340), (46, 399170), (92, 199585), (115, 159668), (179, 102580), (223, 82340), (230, 79834), (358, 51290), (446, 41170), (460, 39917), (716, 25645), (892, 20585), (895, 20516), (1115, 16468), (1790, 10258), (2230, 8234), (3580, 5129), (4117, 4460)]