20804766515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{67003}}^1$

素因数の和:67319

約数の個数: 32

約数和(自身を含む): 28569433536

約数和(自身を除く): 7764667021

約数列:

[1, 5, 13, 17, 65, 85, 221, 281, 1105, 1405, 3653, 4777, 18265, 23885, 62101, 67003, 310505, 335015, 871039, 1139051, 4355195, 5695255, 14807663, 18827843, 74038315, 94139215, 244761959, 320073331, 1223809795, 1600366655, 4160953303, 20804766515]

約数ペア:

[(1, 20804766515), (5, 4160953303), (13, 1600366655), (17, 1223809795), (65, 320073331), (85, 244761959), (221, 94139215), (281, 74038315), (1105, 18827843), (1405, 14807663), (3653, 5695255), (4777, 4355195), (18265, 1139051), (23885, 871039), (62101, 335015), (67003, 310505)]