1615640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{239}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 3952800

約数和(自身を除く): 2337160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 239, 260, 338, 478, 520, 676, 845, 956, 1195, 1352, 1690, 1912, 2390, 3107, 3380, 4780, 6214, 6760, 9560, 12428, 15535, 24856, 31070, 40391, 62140, 80782, 124280, 161564, 201955, 323128, 403910, 807820, 1615640]

約数ペア:

[(1, 1615640), (2, 807820), (4, 403910), (5, 323128), (8, 201955), (10, 161564), (13, 124280), (20, 80782), (26, 62140), (40, 40391), (52, 31070), (65, 24856), (104, 15535), (130, 12428), (169, 9560), (239, 6760), (260, 6214), (338, 4780), (478, 3380), (520, 3107), (676, 2390), (845, 1912), (956, 1690), (1195, 1352)]