397453040

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{11317}}^1$

素因数の和:11769

約数の個数: 40

約数和(自身を含む): 926265120

約数和(自身を除く): 528812080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 878, 1756, 2195, 3512, 4390, 7024, 8780, 11317, 17560, 22634, 35120, 45268, 56585, 90536, 113170, 181072, 226340, 452680, 905360, 4968163, 9936326, 19872652, 24840815, 39745304, 49681630, 79490608, 99363260, 198726520, 397453040]

約数ペア:

[(1, 397453040), (2, 198726520), (4, 99363260), (5, 79490608), (8, 49681630), (10, 39745304), (16, 24840815), (20, 19872652), (40, 9936326), (80, 4968163), (439, 905360), (878, 452680), (1756, 226340), (2195, 181072), (3512, 113170), (4390, 90536), (7024, 56585), (8780, 45268), (11317, 35120), (17560, 22634)]