19499260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1453}}^1$

素因数の和:1534

約数の個数: 48

約数和(自身を含む): 45434592

約数和(自身を除く): 25935332

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 1453, 2684, 2906, 3355, 5812, 6710, 7265, 13420, 14530, 15983, 29060, 31966, 63932, 79915, 88633, 159830, 177266, 319660, 354532, 443165, 886330, 974963, 1772660, 1949926, 3899852, 4874815, 9749630, 19499260]

約数ペア:

[(1, 19499260), (2, 9749630), (4, 4874815), (5, 3899852), (10, 1949926), (11, 1772660), (20, 974963), (22, 886330), (44, 443165), (55, 354532), (61, 319660), (110, 177266), (122, 159830), (220, 88633), (244, 79915), (305, 63932), (610, 31966), (671, 29060), (1220, 15983), (1342, 14530), (1453, 13420), (2684, 7265), (2906, 6710), (3355, 5812)]