389619940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{5431}}^1$

素因数の和:5668

約数の個数: 48

約数和(自身を含む): 870597504

約数和(自身を除く): 480977564

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 211, 340, 422, 844, 1055, 2110, 3587, 4220, 5431, 7174, 10862, 14348, 17935, 21724, 27155, 35870, 54310, 71740, 92327, 108620, 184654, 369308, 461635, 923270, 1145941, 1846540, 2291882, 4583764, 5729705, 11459410, 19480997, 22918820, 38961994, 77923988, 97404985, 194809970, 389619940]

約数ペア:

[(1, 389619940), (2, 194809970), (4, 97404985), (5, 77923988), (10, 38961994), (17, 22918820), (20, 19480997), (34, 11459410), (68, 5729705), (85, 4583764), (170, 2291882), (211, 1846540), (340, 1145941), (422, 923270), (844, 461635), (1055, 369308), (2110, 184654), (3587, 108620), (4220, 92327), (5431, 71740), (7174, 54310), (10862, 35870), (14348, 27155), (17935, 21724)]