1388695960

素因数分解:

$2^3\times 5^1\times {\mathrm{1319}}^1\times {\mathrm{26321}}^1$

素因数の和:27651

約数の個数: 32

約数和(自身を含む): 3127053600

約数和(自身を除く): 1738357640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1319, 2638, 5276, 6595, 10552, 13190, 26321, 26380, 52642, 52760, 105284, 131605, 210568, 263210, 526420, 1052840, 34717399, 69434798, 138869596, 173586995, 277739192, 347173990, 694347980, 1388695960]

約数ペア:

[(1, 1388695960), (2, 694347980), (4, 347173990), (5, 277739192), (8, 173586995), (10, 138869596), (20, 69434798), (40, 34717399), (1319, 1052840), (2638, 526420), (5276, 263210), (6595, 210568), (10552, 131605), (13190, 105284), (26321, 52760), (26380, 52642)]