18850580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4643}}^1$

素因数の和:4688

約数の個数: 48

約数和(自身を含む): 46811520

約数和(自身を除く): 27960940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4643, 9286, 18572, 23215, 32501, 46430, 65002, 92860, 130004, 134647, 162505, 269294, 325010, 538588, 650020, 673235, 942529, 1346470, 1885058, 2692940, 3770116, 4712645, 9425290, 18850580]

約数ペア:

[(1, 18850580), (2, 9425290), (4, 4712645), (5, 3770116), (7, 2692940), (10, 1885058), (14, 1346470), (20, 942529), (28, 673235), (29, 650020), (35, 538588), (58, 325010), (70, 269294), (116, 162505), (140, 134647), (145, 130004), (203, 92860), (290, 65002), (406, 46430), (580, 32501), (812, 23215), (1015, 18572), (2030, 9286), (4060, 4643)]