61685720

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{9461}}^1$

素因数の和:9635

約数の個数: 32

約数和(自身を含む): 139659120

約数和(自身を除く): 77973400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 9461, 18922, 37844, 47305, 75688, 94610, 189220, 378440, 1542143, 3084286, 6168572, 7710715, 12337144, 15421430, 30842860, 61685720]

約数ペア:

[(1, 61685720), (2, 30842860), (4, 15421430), (5, 12337144), (8, 7710715), (10, 6168572), (20, 3084286), (40, 1542143), (163, 378440), (326, 189220), (652, 94610), (815, 75688), (1304, 47305), (1630, 37844), (3260, 18922), (6520, 9461)]