289044080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{21379}}^1$

素因数の和:21418

約数の個数: 60

約数和(自身を含む): 727732440

約数和(自身を除く): 438688360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 6760, 13520, 21379, 42758, 85516, 106895, 171032, 213790, 277927, 342064, 427580, 555854, 855160, 1111708, 1389635, 1710320, 2223416, 2779270, 3613051, 4446832, 5558540, 7226102, 11117080, 14452204, 18065255, 22234160, 28904408, 36130510, 57808816, 72261020, 144522040, 289044080]

約数ペア:

[(1, 289044080), (2, 144522040), (4, 72261020), (5, 57808816), (8, 36130510), (10, 28904408), (13, 22234160), (16, 18065255), (20, 14452204), (26, 11117080), (40, 7226102), (52, 5558540), (65, 4446832), (80, 3613051), (104, 2779270), (130, 2223416), (169, 1710320), (208, 1389635), (260, 1111708), (338, 855160), (520, 555854), (676, 427580), (845, 342064), (1040, 277927), (1352, 213790), (1690, 171032), (2704, 106895), (3380, 85516), (6760, 42758), (13520, 21379)]