77891980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73483}}^1$

素因数の和:73545

約数の個数: 24

約数和(自身を含む): 166661712

約数和(自身を除く): 88769732

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 73483, 146966, 293932, 367415, 734830, 1469660, 3894599, 7789198, 15578396, 19472995, 38945990, 77891980]

約数ペア:

[(1, 77891980), (2, 38945990), (4, 19472995), (5, 15578396), (10, 7789198), (20, 3894599), (53, 1469660), (106, 734830), (212, 367415), (265, 293932), (530, 146966), (1060, 73483)]