2591940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3323}}^1$

素因数の和:3348

約数の個数: 48

約数和(自身を含む): 7818048

約数和(自身を除く): 5226108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 3323, 6646, 9969, 13292, 16615, 19938, 33230, 39876, 43199, 49845, 66460, 86398, 99690, 129597, 172796, 199380, 215995, 259194, 431990, 518388, 647985, 863980, 1295970, 2591940]

約数ペア:

[(1, 2591940), (2, 1295970), (3, 863980), (4, 647985), (5, 518388), (6, 431990), (10, 259194), (12, 215995), (13, 199380), (15, 172796), (20, 129597), (26, 99690), (30, 86398), (39, 66460), (52, 49845), (60, 43199), (65, 39876), (78, 33230), (130, 19938), (156, 16615), (195, 13292), (260, 9969), (390, 6646), (780, 3323)]