28794760

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10139}}^1$

素因数の和:10221

約数の個数: 32

約数和(自身を含む): 65707200

約数和(自身を除く): 36912440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 10139, 20278, 40556, 50695, 81112, 101390, 202780, 405560, 719869, 1439738, 2879476, 3599345, 5758952, 7198690, 14397380, 28794760]

約数ペア:

[(1, 28794760), (2, 14397380), (4, 7198690), (5, 5758952), (8, 3599345), (10, 2879476), (20, 1439738), (40, 719869), (71, 405560), (142, 202780), (284, 101390), (355, 81112), (568, 50695), (710, 40556), (1420, 20278), (2840, 10139)]