139747120

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{4271}}^1$

素因数の和:4693

約数の個数: 40

約数和(自身を含む): 325782720

約数和(自身を除く): 186035600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 3272, 4090, 4271, 6544, 8180, 8542, 16360, 17084, 21355, 32720, 34168, 42710, 68336, 85420, 170840, 341680, 1746839, 3493678, 6987356, 8734195, 13974712, 17468390, 27949424, 34936780, 69873560, 139747120]

約数ペア:

[(1, 139747120), (2, 69873560), (4, 34936780), (5, 27949424), (8, 17468390), (10, 13974712), (16, 8734195), (20, 6987356), (40, 3493678), (80, 1746839), (409, 341680), (818, 170840), (1636, 85420), (2045, 68336), (3272, 42710), (4090, 34168), (4271, 32720), (6544, 21355), (8180, 17084), (8542, 16360)]