396990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 1128816

約数和(自身を除く): 731826

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, 401, 495, 802, 990, 1203, 2005, 2406, 3609, 4010, 4411, 6015, 7218, 8822, 12030, 13233, 18045, 22055, 26466, 36090, 39699, 44110, 66165, 79398, 132330, 198495, 396990]

約数ペア:

[(1, 396990), (2, 198495), (3, 132330), (5, 79398), (6, 66165), (9, 44110), (10, 39699), (11, 36090), (15, 26466), (18, 22055), (22, 18045), (30, 13233), (33, 12030), (45, 8822), (55, 7218), (66, 6015), (90, 4411), (99, 4010), (110, 3609), (165, 2406), (198, 2005), (330, 1203), (401, 990), (495, 802)]