91648720

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2801}}^1$

素因数の和:3223

約数の個数: 40

約数和(自身を含む): 213680520

約数和(自身を除く): 122031800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 2801, 3272, 4090, 5602, 6544, 8180, 11204, 14005, 16360, 22408, 28010, 32720, 44816, 56020, 112040, 224080, 1145609, 2291218, 4582436, 5728045, 9164872, 11456090, 18329744, 22912180, 45824360, 91648720]

約数ペア:

[(1, 91648720), (2, 45824360), (4, 22912180), (5, 18329744), (8, 11456090), (10, 9164872), (16, 5728045), (20, 4582436), (40, 2291218), (80, 1145609), (409, 224080), (818, 112040), (1636, 56020), (2045, 44816), (2801, 32720), (3272, 28010), (4090, 22408), (5602, 16360), (6544, 14005), (8180, 11204)]