20150260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4079}}^1$

素因数の和:4120

約数の個数: 48

約数和(自身を含む): 47980800

約数和(自身を除く): 27830540

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4079, 4940, 8158, 16316, 20395, 40790, 53027, 77501, 81580, 106054, 155002, 212108, 265135, 310004, 387505, 530270, 775010, 1007513, 1060540, 1550020, 2015026, 4030052, 5037565, 10075130, 20150260]

約数ペア:

[(1, 20150260), (2, 10075130), (4, 5037565), (5, 4030052), (10, 2015026), (13, 1550020), (19, 1060540), (20, 1007513), (26, 775010), (38, 530270), (52, 387505), (65, 310004), (76, 265135), (95, 212108), (130, 155002), (190, 106054), (247, 81580), (260, 77501), (380, 53027), (494, 40790), (988, 20395), (1235, 16316), (2470, 8158), (4079, 4940)]