2019975035

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1307}}^1$

素因数の和:1428

約数の個数: 48

約数和(自身を含む): 2757473280

約数和(自身を除く): 737498245

約数列:

[1, 5, 13, 31, 59, 65, 155, 169, 295, 403, 767, 845, 1307, 1829, 2015, 3835, 5239, 6535, 9145, 9971, 16991, 23777, 26195, 40517, 49855, 77113, 84955, 118885, 202585, 220883, 309101, 385565, 526721, 1002469, 1104415, 1545505, 2390503, 2633605, 5012345, 6847373, 11952515, 13032097, 31076539, 34236865, 65160485, 155382695, 403995007, 2019975035]

約数ペア:

[(1, 2019975035), (5, 403995007), (13, 155382695), (31, 65160485), (59, 34236865), (65, 31076539), (155, 13032097), (169, 11952515), (295, 6847373), (403, 5012345), (767, 2633605), (845, 2390503), (1307, 1545505), (1829, 1104415), (2015, 1002469), (3835, 526721), (5239, 385565), (6535, 309101), (9145, 220883), (9971, 202585), (16991, 118885), (23777, 84955), (26195, 77113), (40517, 49855)]