1218585420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{520763}}^1$

素因数の和:520791

約数の個数: 72

約数和(自身を含む): 3980720016

約数和(自身を除く): 2762134596

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, 520763, 1041526, 1562289, 2083052, 2603815, 3124578, 4686867, 5207630, 6249156, 6769919, 7811445, 9373734, 10415260, 13539838, 15622890, 18747468, 20309757, 23434335, 27079676, 31245780, 33849595, 40619514, 46868670, 60929271, 67699190, 81239028, 93737340, 101548785, 121858542, 135398380, 203097570, 243717084, 304646355, 406195140, 609292710, 1218585420]

約数ペア:

[(1, 1218585420), (2, 609292710), (3, 406195140), (4, 304646355), (5, 243717084), (6, 203097570), (9, 135398380), (10, 121858542), (12, 101548785), (13, 93737340), (15, 81239028), (18, 67699190), (20, 60929271), (26, 46868670), (30, 40619514), (36, 33849595), (39, 31245780), (45, 27079676), (52, 23434335), (60, 20309757), (65, 18747468), (78, 15622890), (90, 13539838), (117, 10415260), (130, 9373734), (156, 7811445), (180, 6769919), (195, 6249156), (234, 5207630), (260, 4686867), (390, 3124578), (468, 2603815), (585, 2083052), (780, 1562289), (1170, 1041526), (2340, 520763)]