7821990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7901}}^1$

素因数の和:7925

約数の個数: 48

約数和(自身を含む): 22188816

約数和(自身を除く): 14366826

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 7901, 15802, 23703, 39505, 47406, 71109, 79010, 86911, 118515, 142218, 173822, 237030, 260733, 355545, 434555, 521466, 711090, 782199, 869110, 1303665, 1564398, 2607330, 3910995, 7821990]

約数ペア:

[(1, 7821990), (2, 3910995), (3, 2607330), (5, 1564398), (6, 1303665), (9, 869110), (10, 782199), (11, 711090), (15, 521466), (18, 434555), (22, 355545), (30, 260733), (33, 237030), (45, 173822), (55, 142218), (66, 118515), (90, 86911), (99, 79010), (110, 71109), (165, 47406), (198, 39505), (330, 23703), (495, 15802), (990, 7901)]