64161968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{827}}^1$

素因数の和:1221

約数の個数: 40

約数和(自身を含む): 134397648

約数和(自身を除く): 70235680

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 373, 746, 827, 1492, 1654, 2984, 3308, 4849, 5968, 6616, 9698, 10751, 13232, 19396, 21502, 38792, 43004, 77584, 86008, 172016, 308471, 616942, 1233884, 2467768, 4010123, 4935536, 8020246, 16040492, 32080984, 64161968]

約数ペア:

[(1, 64161968), (2, 32080984), (4, 16040492), (8, 8020246), (13, 4935536), (16, 4010123), (26, 2467768), (52, 1233884), (104, 616942), (208, 308471), (373, 172016), (746, 86008), (827, 77584), (1492, 43004), (1654, 38792), (2984, 21502), (3308, 19396), (4849, 13232), (5968, 10751), (6616, 9698)]