4478840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2731}}^1$

素因数の和:2783

約数の個数: 32

約数和(自身を含む): 10326960

約数和(自身を除く): 5848120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 2731, 5462, 10924, 13655, 21848, 27310, 54620, 109240, 111971, 223942, 447884, 559855, 895768, 1119710, 2239420, 4478840]

約数ペア:

[(1, 4478840), (2, 2239420), (4, 1119710), (5, 895768), (8, 559855), (10, 447884), (20, 223942), (40, 111971), (41, 109240), (82, 54620), (164, 27310), (205, 21848), (328, 13655), (410, 10924), (820, 5462), (1640, 2731)]