20655544

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1669}}^1$

素因数の和:1712

約数の個数: 64

約数和(自身を含む): 50500800

約数和(自身を除く): 29845256

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 26, 28, 34, 52, 56, 68, 91, 104, 119, 136, 182, 221, 238, 364, 442, 476, 728, 884, 952, 1547, 1669, 1768, 3094, 3338, 6188, 6676, 11683, 12376, 13352, 21697, 23366, 28373, 43394, 46732, 56746, 86788, 93464, 113492, 151879, 173576, 198611, 226984, 303758, 368849, 397222, 607516, 737698, 794444, 1215032, 1475396, 1588888, 2581943, 2950792, 5163886, 10327772, 20655544]

約数ペア:

[(1, 20655544), (2, 10327772), (4, 5163886), (7, 2950792), (8, 2581943), (13, 1588888), (14, 1475396), (17, 1215032), (26, 794444), (28, 737698), (34, 607516), (52, 397222), (56, 368849), (68, 303758), (91, 226984), (104, 198611), (119, 173576), (136, 151879), (182, 113492), (221, 93464), (238, 86788), (364, 56746), (442, 46732), (476, 43394), (728, 28373), (884, 23366), (952, 21697), (1547, 13352), (1669, 12376), (1768, 11683), (3094, 6676), (3338, 6188)]