18203480

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{797}}^1$

素因数の和:1379

約数の個数: 32

約数和(自身を含む): 41081040

約数和(自身を除く): 22877560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 797, 1142, 1594, 2284, 2855, 3188, 3985, 4568, 5710, 6376, 7970, 11420, 15940, 22840, 31880, 455087, 910174, 1820348, 2275435, 3640696, 4550870, 9101740, 18203480]

約数ペア:

[(1, 18203480), (2, 9101740), (4, 4550870), (5, 3640696), (8, 2275435), (10, 1820348), (20, 910174), (40, 455087), (571, 31880), (797, 22840), (1142, 15940), (1594, 11420), (2284, 7970), (2855, 6376), (3188, 5710), (3985, 4568)]