489370570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{23977}}^1$

素因数の和:24154

約数の個数: 32

約数和(自身を含む): 954708048

約数和(自身を除く): 465337478

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 314, 785, 1570, 2041, 4082, 10205, 20410, 23977, 47954, 119885, 239770, 311701, 623402, 1558505, 3117010, 3764389, 7528778, 18821945, 37643890, 48937057, 97874114, 244685285, 489370570]

約数ペア:

[(1, 489370570), (2, 244685285), (5, 97874114), (10, 48937057), (13, 37643890), (26, 18821945), (65, 7528778), (130, 3764389), (157, 3117010), (314, 1558505), (785, 623402), (1570, 311701), (2041, 239770), (4082, 119885), (10205, 47954), (20410, 23977)]