87956020

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{569}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 189604800

約数和(自身を除く): 101648780

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 131, 236, 262, 295, 524, 569, 590, 655, 1138, 1180, 1310, 2276, 2620, 2845, 5690, 7729, 11380, 15458, 30916, 33571, 38645, 67142, 74539, 77290, 134284, 149078, 154580, 167855, 298156, 335710, 372695, 671420, 745390, 1490780, 4397801, 8795602, 17591204, 21989005, 43978010, 87956020]

約数ペア:

[(1, 87956020), (2, 43978010), (4, 21989005), (5, 17591204), (10, 8795602), (20, 4397801), (59, 1490780), (118, 745390), (131, 671420), (236, 372695), (262, 335710), (295, 298156), (524, 167855), (569, 154580), (590, 149078), (655, 134284), (1138, 77290), (1180, 74539), (1310, 67142), (2276, 38645), (2620, 33571), (2845, 30916), (5690, 15458), (7729, 11380)]