12889220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{317}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 28848960

約数和(自身を除く): 15959740

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 107, 190, 214, 317, 380, 428, 535, 634, 1070, 1268, 1585, 2033, 2140, 3170, 4066, 6023, 6340, 8132, 10165, 12046, 20330, 24092, 30115, 33919, 40660, 60230, 67838, 120460, 135676, 169595, 339190, 644461, 678380, 1288922, 2577844, 3222305, 6444610, 12889220]

約数ペア:

[(1, 12889220), (2, 6444610), (4, 3222305), (5, 2577844), (10, 1288922), (19, 678380), (20, 644461), (38, 339190), (76, 169595), (95, 135676), (107, 120460), (190, 67838), (214, 60230), (317, 40660), (380, 33919), (428, 30115), (535, 24092), (634, 20330), (1070, 12046), (1268, 10165), (1585, 8132), (2033, 6340), (2140, 6023), (3170, 4066)]