18471520

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6791}}^1$

素因数の和:6823

約数の個数: 48

約数和(自身を含む): 46212768

約数和(自身を除く): 27741248

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 6791, 13582, 27164, 33955, 54328, 67910, 108656, 115447, 135820, 217312, 230894, 271640, 461788, 543280, 577235, 923576, 1086560, 1154470, 1847152, 2308940, 3694304, 4617880, 9235760, 18471520]

約数ペア:

[(1, 18471520), (2, 9235760), (4, 4617880), (5, 3694304), (8, 2308940), (10, 1847152), (16, 1154470), (17, 1086560), (20, 923576), (32, 577235), (34, 543280), (40, 461788), (68, 271640), (80, 230894), (85, 217312), (136, 135820), (160, 115447), (170, 108656), (272, 67910), (340, 54328), (544, 33955), (680, 27164), (1360, 13582), (2720, 6791)]