28001220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{35899}}^1$

素因数の和:35924

約数の個数: 48

約数和(自身を含む): 84436800

約数和(自身を除く): 56435580

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, 35899, 71798, 107697, 143596, 179495, 215394, 358990, 430788, 466687, 538485, 717980, 933374, 1076970, 1400061, 1866748, 2153940, 2333435, 2800122, 4666870, 5600244, 7000305, 9333740, 14000610, 28001220]

約数ペア:

[(1, 28001220), (2, 14000610), (3, 9333740), (4, 7000305), (5, 5600244), (6, 4666870), (10, 2800122), (12, 2333435), (13, 2153940), (15, 1866748), (20, 1400061), (26, 1076970), (30, 933374), (39, 717980), (52, 538485), (60, 466687), (65, 430788), (78, 358990), (130, 215394), (156, 179495), (195, 143596), (260, 107697), (390, 71798), (780, 35899)]