81301713040

素因数分解:

$2^4\times 5^1\times {\mathrm{2729}}^1\times {\mathrm{372397}}^1$

素因数の和:375139

約数の個数: 40

約数和(自身を含む): 189096256440

約数和(自身を除く): 107794543400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2729, 5458, 10916, 13645, 21832, 27290, 43664, 54580, 109160, 218320, 372397, 744794, 1489588, 1861985, 2979176, 3723970, 5958352, 7447940, 14895880, 29791760, 1016271413, 2032542826, 4065085652, 5081357065, 8130171304, 10162714130, 16260342608, 20325428260, 40650856520, 81301713040]

約数ペア:

[(1, 81301713040), (2, 40650856520), (4, 20325428260), (5, 16260342608), (8, 10162714130), (10, 8130171304), (16, 5081357065), (20, 4065085652), (40, 2032542826), (80, 1016271413), (2729, 29791760), (5458, 14895880), (10916, 7447940), (13645, 5958352), (21832, 3723970), (27290, 2979176), (43664, 1861985), (54580, 1489588), (109160, 744794), (218320, 372397)]