18641220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23899}}^1$

素因数の和:23924

約数の個数: 48

約数和(自身を含む): 56212800

約数和(自身を除く): 37571580

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, 23899, 47798, 71697, 95596, 119495, 143394, 238990, 286788, 310687, 358485, 477980, 621374, 716970, 932061, 1242748, 1433940, 1553435, 1864122, 3106870, 3728244, 4660305, 6213740, 9320610, 18641220]

約数ペア:

[(1, 18641220), (2, 9320610), (3, 6213740), (4, 4660305), (5, 3728244), (6, 3106870), (10, 1864122), (12, 1553435), (13, 1433940), (15, 1242748), (20, 932061), (26, 716970), (30, 621374), (39, 477980), (52, 358485), (60, 310687), (65, 286788), (78, 238990), (130, 143394), (156, 119495), (195, 95596), (260, 71697), (390, 47798), (780, 23899)]