18668605280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{690407}}^1$

素因数の和:690448

約数の個数: 72

約数和(自身を含む): 47758282992

約数和(自身を除く): 29089677712

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 169, 208, 260, 338, 416, 520, 676, 845, 1040, 1352, 1690, 2080, 2704, 3380, 5408, 6760, 13520, 27040, 690407, 1380814, 2761628, 3452035, 5523256, 6904070, 8975291, 11046512, 13808140, 17950582, 22093024, 27616280, 35901164, 44876455, 55232560, 71802328, 89752910, 110465120, 116678783, 143604656, 179505820, 233357566, 287209312, 359011640, 466715132, 583393915, 718023280, 933430264, 1166787830, 1436046560, 1866860528, 2333575660, 3733721056, 4667151320, 9334302640, 18668605280]

約数ペア:

[(1, 18668605280), (2, 9334302640), (4, 4667151320), (5, 3733721056), (8, 2333575660), (10, 1866860528), (13, 1436046560), (16, 1166787830), (20, 933430264), (26, 718023280), (32, 583393915), (40, 466715132), (52, 359011640), (65, 287209312), (80, 233357566), (104, 179505820), (130, 143604656), (160, 116678783), (169, 110465120), (208, 89752910), (260, 71802328), (338, 55232560), (416, 44876455), (520, 35901164), (676, 27616280), (845, 22093024), (1040, 17950582), (1352, 13808140), (1690, 11046512), (2080, 8975291), (2704, 6904070), (3380, 5523256), (5408, 3452035), (6760, 2761628), (13520, 1380814), (27040, 690407)]