127980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{79}}^1$

素因数の和:100

約数の個数: 60

約数和(自身を含む): 406560

約数和(自身を除く): 278580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 79, 81, 90, 108, 135, 158, 162, 180, 237, 270, 316, 324, 395, 405, 474, 540, 711, 790, 810, 948, 1185, 1422, 1580, 1620, 2133, 2370, 2844, 3555, 4266, 4740, 6399, 7110, 8532, 10665, 12798, 14220, 21330, 25596, 31995, 42660, 63990, 127980]

約数ペア:

[(1, 127980), (2, 63990), (3, 42660), (4, 31995), (5, 25596), (6, 21330), (9, 14220), (10, 12798), (12, 10665), (15, 8532), (18, 7110), (20, 6399), (27, 4740), (30, 4266), (36, 3555), (45, 2844), (54, 2370), (60, 2133), (79, 1620), (81, 1580), (90, 1422), (108, 1185), (135, 948), (158, 810), (162, 790), (180, 711), (237, 540), (270, 474), (316, 405), (324, 395)]