212908020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{272959}}^1$

素因数の和:272984

約数の個数: 48

約数和(自身を含む): 642001920

約数和(自身を除く): 429093900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 272959, 545918, 818877, 1091836, 1364795, 1637754, 2729590, 3275508, 3548467, 4094385, 5459180, 7096934, 8188770, 10645401, 14193868, 16377540, 17742335, 21290802, 35484670, 42581604, 53227005, 70969340, 106454010, 212908020]

約数ペア:

[(1, 212908020), (2, 106454010), (3, 70969340), (4, 53227005), (5, 42581604), (6, 35484670), (10, 21290802), (12, 17742335), (13, 16377540), (15, 14193868), (20, 10645401), (26, 8188770), (30, 7096934), (39, 5459180), (52, 4094385), (60, 3548467), (65, 3275508), (78, 2729590), (130, 1637754), (156, 1364795), (195, 1091836), (260, 818877), (390, 545918), (780, 272959)]