181857980

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{1543}}^1$

素因数の和:1706

約数の個数: 48

約数和(自身を含む): 392200704

約数和(自身を除く): 210342724

約数列:

[1, 2, 4, 5, 10, 20, 71, 83, 142, 166, 284, 332, 355, 415, 710, 830, 1420, 1543, 1660, 3086, 5893, 6172, 7715, 11786, 15430, 23572, 29465, 30860, 58930, 109553, 117860, 128069, 219106, 256138, 438212, 512276, 547765, 640345, 1095530, 1280690, 2191060, 2561380, 9092899, 18185798, 36371596, 45464495, 90928990, 181857980]

約数ペア:

[(1, 181857980), (2, 90928990), (4, 45464495), (5, 36371596), (10, 18185798), (20, 9092899), (71, 2561380), (83, 2191060), (142, 1280690), (166, 1095530), (284, 640345), (332, 547765), (355, 512276), (415, 438212), (710, 256138), (830, 219106), (1420, 128069), (1543, 117860), (1660, 109553), (3086, 58930), (5893, 30860), (6172, 29465), (7715, 23572), (11786, 15430)]