20805920460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8891419}}^1$

素因数の和:8891447

約数の個数: 72

約数和(自身を含む): 67966014480

約数和(自身を除く): 47160094020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8891419, 17782838, 26674257, 35565676, 44457095, 53348514, 80022771, 88914190, 106697028, 115588447, 133371285, 160045542, 177828380, 231176894, 266742570, 320091084, 346765341, 400113855, 462353788, 533485140, 577942235, 693530682, 800227710, 1040296023, 1155884470, 1387061364, 1600455420, 1733826705, 2080592046, 2311768940, 3467653410, 4161184092, 5201480115, 6935306820, 10402960230, 20805920460]

約数ペア:

[(1, 20805920460), (2, 10402960230), (3, 6935306820), (4, 5201480115), (5, 4161184092), (6, 3467653410), (9, 2311768940), (10, 2080592046), (12, 1733826705), (13, 1600455420), (15, 1387061364), (18, 1155884470), (20, 1040296023), (26, 800227710), (30, 693530682), (36, 577942235), (39, 533485140), (45, 462353788), (52, 400113855), (60, 346765341), (65, 320091084), (78, 266742570), (90, 231176894), (117, 177828380), (130, 160045542), (156, 133371285), (180, 115588447), (195, 106697028), (234, 88914190), (260, 80022771), (390, 53348514), (468, 44457095), (585, 35565676), (780, 26674257), (1170, 17782838), (2340, 8891419)]