264621968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{66959}}^1$

素因数の和:66999

約数の個数: 40

約数和(自身を含む): 581212800

約数和(自身を除く): 316590832

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 66959, 133918, 267836, 535672, 870467, 1071344, 1272221, 1740934, 2544442, 3481868, 5088884, 6963736, 10177768, 13927472, 16538873, 20355536, 33077746, 66155492, 132310984, 264621968]

約数ペア:

[(1, 264621968), (2, 132310984), (4, 66155492), (8, 33077746), (13, 20355536), (16, 16538873), (19, 13927472), (26, 10177768), (38, 6963736), (52, 5088884), (76, 3481868), (104, 2544442), (152, 1740934), (208, 1272221), (247, 1071344), (304, 870467), (494, 535672), (988, 267836), (1976, 133918), (3952, 66959)]