20189808

素因数分解:

$2^4\times 3^2\times {\mathrm{140207}}^1$

素因数の和:140221

約数の個数: 30

約数和(自身を含む): 56503824

約数和(自身を除く): 36314016

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 140207, 280414, 420621, 560828, 841242, 1121656, 1261863, 1682484, 2243312, 2523726, 3364968, 5047452, 6729936, 10094904, 20189808]

約数ペア:

[(1, 20189808), (2, 10094904), (3, 6729936), (4, 5047452), (6, 3364968), (8, 2523726), (9, 2243312), (12, 1682484), (16, 1261863), (18, 1121656), (24, 841242), (36, 560828), (48, 420621), (72, 280414), (144, 140207)]