18780164

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 37359168

約数和(自身を除く): 18579004

約数列:

[1, 2, 4, 13, 26, 37, 43, 52, 74, 86, 148, 172, 227, 454, 481, 559, 908, 962, 1118, 1591, 1924, 2236, 2951, 3182, 5902, 6364, 8399, 9761, 11804, 16798, 19522, 20683, 33596, 39044, 41366, 82732, 109187, 126893, 218374, 253786, 361157, 436748, 507572, 722314, 1444628, 4695041, 9390082, 18780164]

約数ペア:

[(1, 18780164), (2, 9390082), (4, 4695041), (13, 1444628), (26, 722314), (37, 507572), (43, 436748), (52, 361157), (74, 253786), (86, 218374), (148, 126893), (172, 109187), (227, 82732), (454, 41366), (481, 39044), (559, 33596), (908, 20683), (962, 19522), (1118, 16798), (1591, 11804), (1924, 9761), (2236, 8399), (2951, 6364), (3182, 5902)]