15421340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{367}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 35610624

約数和(自身を除く): 20189284

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 220, 367, 382, 734, 764, 955, 1468, 1835, 1910, 2101, 3670, 3820, 4037, 4202, 7340, 8074, 8404, 10505, 16148, 20185, 21010, 40370, 42020, 70097, 80740, 140194, 280388, 350485, 700970, 771067, 1401940, 1542134, 3084268, 3855335, 7710670, 15421340]

約数ペア:

[(1, 15421340), (2, 7710670), (4, 3855335), (5, 3084268), (10, 1542134), (11, 1401940), (20, 771067), (22, 700970), (44, 350485), (55, 280388), (110, 140194), (191, 80740), (220, 70097), (367, 42020), (382, 40370), (734, 21010), (764, 20185), (955, 16148), (1468, 10505), (1835, 8404), (1910, 8074), (2101, 7340), (3670, 4202), (3820, 4037)]