2019191915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 2832350976

約数和(自身を除く): 813159061

約数列:

[1, 5, 13, 17, 65, 85, 103, 113, 157, 221, 515, 565, 785, 1105, 1339, 1469, 1751, 1921, 2041, 2669, 6695, 7345, 8755, 9605, 10205, 11639, 13345, 16171, 17741, 22763, 24973, 34697, 58195, 80855, 88705, 113815, 124865, 151307, 173485, 197863, 210223, 230633, 274907, 301597, 756535, 989315, 1051115, 1153165, 1374535, 1507985, 1827323, 2572219, 3573791, 3920761, 9136615, 12861095, 17868955, 19603805, 23755199, 31064491, 118775995, 155322455, 403838383, 2019191915]

約数ペア:

[(1, 2019191915), (5, 403838383), (13, 155322455), (17, 118775995), (65, 31064491), (85, 23755199), (103, 19603805), (113, 17868955), (157, 12861095), (221, 9136615), (515, 3920761), (565, 3573791), (785, 2572219), (1105, 1827323), (1339, 1507985), (1469, 1374535), (1751, 1153165), (1921, 1051115), (2041, 989315), (2669, 756535), (6695, 301597), (7345, 274907), (8755, 230633), (9605, 210223), (10205, 197863), (11639, 173485), (13345, 151307), (16171, 124865), (17741, 113815), (22763, 88705), (24973, 80855), (34697, 58195)]