1661550520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{83579}}^1$

素因数の和:83668

約数の個数: 64

約数和(自身を含む): 4332787200

約数和(自身を除く): 2671236680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 9940, 19880, 83579, 167158, 334316, 417895, 585053, 668632, 835790, 1170106, 1671580, 2340212, 2925265, 3343160, 4680424, 5850530, 5934109, 11701060, 11868218, 23402120, 23736436, 29670545, 41538763, 47472872, 59341090, 83077526, 118682180, 166155052, 207693815, 237364360, 332310104, 415387630, 830775260, 1661550520]

約数ペア:

[(1, 1661550520), (2, 830775260), (4, 415387630), (5, 332310104), (7, 237364360), (8, 207693815), (10, 166155052), (14, 118682180), (20, 83077526), (28, 59341090), (35, 47472872), (40, 41538763), (56, 29670545), (70, 23736436), (71, 23402120), (140, 11868218), (142, 11701060), (280, 5934109), (284, 5850530), (355, 4680424), (497, 3343160), (568, 2925265), (710, 2340212), (994, 1671580), (1420, 1170106), (1988, 835790), (2485, 668632), (2840, 585053), (3976, 417895), (4970, 334316), (9940, 167158), (19880, 83579)]