20075680

素因数分解:

$2^5\times 5^1\times {\mathrm{271}}^1\times {\mathrm{463}}^1$

素因数の和:749

約数の個数: 48

約数和(自身を含む): 47706624

約数和(自身を除く): 27630944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 271, 463, 542, 926, 1084, 1355, 1852, 2168, 2315, 2710, 3704, 4336, 4630, 5420, 7408, 8672, 9260, 10840, 14816, 18520, 21680, 37040, 43360, 74080, 125473, 250946, 501892, 627365, 1003784, 1254730, 2007568, 2509460, 4015136, 5018920, 10037840, 20075680]

約数ペア:

[(1, 20075680), (2, 10037840), (4, 5018920), (5, 4015136), (8, 2509460), (10, 2007568), (16, 1254730), (20, 1003784), (32, 627365), (40, 501892), (80, 250946), (160, 125473), (271, 74080), (463, 43360), (542, 37040), (926, 21680), (1084, 18520), (1355, 14816), (1852, 10840), (2168, 9260), (2315, 8672), (2710, 7408), (3704, 5420), (4336, 4630)]