19831940

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1103}}^1$

素因数の和:1172

約数の個数: 48

約数和(自身を含む): 44513280

約数和(自身を除く): 24681340

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1103, 1798, 2206, 3596, 4412, 4495, 5515, 8990, 11030, 17980, 22060, 31987, 34193, 63974, 68386, 127948, 136772, 159935, 170965, 319870, 341930, 639740, 683860, 991597, 1983194, 3966388, 4957985, 9915970, 19831940]

約数ペア:

[(1, 19831940), (2, 9915970), (4, 4957985), (5, 3966388), (10, 1983194), (20, 991597), (29, 683860), (31, 639740), (58, 341930), (62, 319870), (116, 170965), (124, 159935), (145, 136772), (155, 127948), (290, 68386), (310, 63974), (580, 34193), (620, 31987), (899, 22060), (1103, 17980), (1798, 11030), (2206, 8990), (3596, 5515), (4412, 4495)]