4442020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 10374336

約数和(自身を除く): 5932316

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 331, 610, 662, 671, 1220, 1324, 1342, 1655, 2684, 3310, 3355, 3641, 6620, 6710, 7282, 13420, 14564, 18205, 20191, 36410, 40382, 72820, 80764, 100955, 201910, 222101, 403820, 444202, 888404, 1110505, 2221010, 4442020]

約数ペア:

[(1, 4442020), (2, 2221010), (4, 1110505), (5, 888404), (10, 444202), (11, 403820), (20, 222101), (22, 201910), (44, 100955), (55, 80764), (61, 72820), (110, 40382), (122, 36410), (220, 20191), (244, 18205), (305, 14564), (331, 13420), (610, 7282), (662, 6710), (671, 6620), (1220, 3641), (1324, 3355), (1342, 3310), (1655, 2684)]