40139780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1447}}^1$

素因数の和:1548

約数の個数: 48

約数和(自身を含む): 90007680

約数和(自身を除く): 49867900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 730, 1387, 1447, 1460, 2774, 2894, 5548, 5788, 6935, 7235, 13870, 14470, 27493, 27740, 28940, 54986, 105631, 109972, 137465, 211262, 274930, 422524, 528155, 549860, 1056310, 2006989, 2112620, 4013978, 8027956, 10034945, 20069890, 40139780]

約数ペア:

[(1, 40139780), (2, 20069890), (4, 10034945), (5, 8027956), (10, 4013978), (19, 2112620), (20, 2006989), (38, 1056310), (73, 549860), (76, 528155), (95, 422524), (146, 274930), (190, 211262), (292, 137465), (365, 109972), (380, 105631), (730, 54986), (1387, 28940), (1447, 27740), (1460, 27493), (2774, 14470), (2894, 13870), (5548, 7235), (5788, 6935)]