4359940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 10125360

約数和(自身を除く): 5765420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 409, 410, 533, 818, 820, 1066, 1636, 2045, 2132, 2665, 4090, 5317, 5330, 8180, 10634, 10660, 16769, 21268, 26585, 33538, 53170, 67076, 83845, 106340, 167690, 217997, 335380, 435994, 871988, 1089985, 2179970, 4359940]

約数ペア:

[(1, 4359940), (2, 2179970), (4, 1089985), (5, 871988), (10, 435994), (13, 335380), (20, 217997), (26, 167690), (41, 106340), (52, 83845), (65, 67076), (82, 53170), (130, 33538), (164, 26585), (205, 21268), (260, 16769), (409, 10660), (410, 10634), (533, 8180), (818, 5330), (820, 5317), (1066, 4090), (1636, 2665), (2045, 2132)]