42172780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8537}}^1$

素因数の和:8578

約数の個数: 48

約数和(自身を含む): 100406880

約数和(自身を除く): 58234100

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 8537, 17074, 34148, 42685, 85370, 110981, 162203, 170740, 221962, 324406, 443924, 554905, 648812, 811015, 1109810, 1622030, 2108639, 2219620, 3244060, 4217278, 8434556, 10543195, 21086390, 42172780]

約数ペア:

[(1, 42172780), (2, 21086390), (4, 10543195), (5, 8434556), (10, 4217278), (13, 3244060), (19, 2219620), (20, 2108639), (26, 1622030), (38, 1109810), (52, 811015), (65, 648812), (76, 554905), (95, 443924), (130, 324406), (190, 221962), (247, 170740), (260, 162203), (380, 110981), (494, 85370), (988, 42685), (1235, 34148), (2470, 17074), (4940, 8537)]