129538040

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{419}}^1$

素因数の和:620

約数の個数: 64

約数和(自身を含む): 299376000

約数和(自身を除く): 169837960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 131, 236, 262, 295, 419, 472, 524, 590, 655, 838, 1048, 1180, 1310, 1676, 2095, 2360, 2620, 3352, 4190, 5240, 7729, 8380, 15458, 16760, 24721, 30916, 38645, 49442, 54889, 61832, 77290, 98884, 109778, 123605, 154580, 197768, 219556, 247210, 274445, 309160, 439112, 494420, 548890, 988840, 1097780, 2195560, 3238451, 6476902, 12953804, 16192255, 25907608, 32384510, 64769020, 129538040]

約数ペア:

[(1, 129538040), (2, 64769020), (4, 32384510), (5, 25907608), (8, 16192255), (10, 12953804), (20, 6476902), (40, 3238451), (59, 2195560), (118, 1097780), (131, 988840), (236, 548890), (262, 494420), (295, 439112), (419, 309160), (472, 274445), (524, 247210), (590, 219556), (655, 197768), (838, 154580), (1048, 123605), (1180, 109778), (1310, 98884), (1676, 77290), (2095, 61832), (2360, 54889), (2620, 49442), (3352, 38645), (4190, 30916), (5240, 24721), (7729, 16760), (8380, 15458)]