18764464

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{463}}^1$

素因数の和:637

約数の個数: 40

約数和(自身を含む): 38836800

約数和(自身を除く): 20072336

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 149, 272, 298, 463, 596, 926, 1192, 1852, 2384, 2533, 3704, 5066, 7408, 7871, 10132, 15742, 20264, 31484, 40528, 62968, 68987, 125936, 137974, 275948, 551896, 1103792, 1172779, 2345558, 4691116, 9382232, 18764464]

約数ペア:

[(1, 18764464), (2, 9382232), (4, 4691116), (8, 2345558), (16, 1172779), (17, 1103792), (34, 551896), (68, 275948), (136, 137974), (149, 125936), (272, 68987), (298, 62968), (463, 40528), (596, 31484), (926, 20264), (1192, 15742), (1852, 10132), (2384, 7871), (2533, 7408), (3704, 5066)]