156887920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{997}}^1$

素因数の和:1298

約数の個数: 80

約数和(自身を含む): 418776768

約数和(自身を除く): 261888848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 281, 560, 562, 997, 1124, 1405, 1967, 1994, 2248, 2810, 3934, 3988, 4496, 4985, 5620, 6979, 7868, 7976, 9835, 9970, 11240, 13958, 15736, 15952, 19670, 19940, 22480, 27916, 31472, 34895, 39340, 39880, 55832, 69790, 78680, 79760, 111664, 139580, 157360, 279160, 280157, 558320, 560314, 1120628, 1400785, 1961099, 2241256, 2801570, 3922198, 4482512, 5603140, 7844396, 9805495, 11206280, 15688792, 19610990, 22412560, 31377584, 39221980, 78443960, 156887920]

約数ペア:

[(1, 156887920), (2, 78443960), (4, 39221980), (5, 31377584), (7, 22412560), (8, 19610990), (10, 15688792), (14, 11206280), (16, 9805495), (20, 7844396), (28, 5603140), (35, 4482512), (40, 3922198), (56, 2801570), (70, 2241256), (80, 1961099), (112, 1400785), (140, 1120628), (280, 560314), (281, 558320), (560, 280157), (562, 279160), (997, 157360), (1124, 139580), (1405, 111664), (1967, 79760), (1994, 78680), (2248, 69790), (2810, 55832), (3934, 39880), (3988, 39340), (4496, 34895), (4985, 31472), (5620, 27916), (6979, 22480), (7868, 19940), (7976, 19670), (9835, 15952), (9970, 15736), (11240, 13958)]