149201720

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{5801}}^1$

素因数の和:6455

約数の個数: 32

約数和(自身を含む): 336283920

約数和(自身を除く): 187082200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 5801, 6430, 11602, 12860, 23204, 25720, 29005, 46408, 58010, 116020, 232040, 3730043, 7460086, 14920172, 18650215, 29840344, 37300430, 74600860, 149201720]

約数ペア:

[(1, 149201720), (2, 74600860), (4, 37300430), (5, 29840344), (8, 18650215), (10, 14920172), (20, 7460086), (40, 3730043), (643, 232040), (1286, 116020), (2572, 58010), (3215, 46408), (5144, 29005), (5801, 25720), (6430, 23204), (11602, 12860)]