51991380

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{41263}}^1$

素因数の和:41285

約数の個数: 72

約数和(自身を含む): 180241152

約数和(自身を除く): 128249772

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 41263, 82526, 123789, 165052, 206315, 247578, 288841, 371367, 412630, 495156, 577682, 618945, 742734, 825260, 866523, 1155364, 1237890, 1444205, 1485468, 1733046, 1856835, 2475780, 2599569, 2888410, 3466092, 3713670, 4332615, 5199138, 5776820, 7427340, 8665230, 10398276, 12997845, 17330460, 25995690, 51991380]

約数ペア:

[(1, 51991380), (2, 25995690), (3, 17330460), (4, 12997845), (5, 10398276), (6, 8665230), (7, 7427340), (9, 5776820), (10, 5199138), (12, 4332615), (14, 3713670), (15, 3466092), (18, 2888410), (20, 2599569), (21, 2475780), (28, 1856835), (30, 1733046), (35, 1485468), (36, 1444205), (42, 1237890), (45, 1155364), (60, 866523), (63, 825260), (70, 742734), (84, 618945), (90, 577682), (105, 495156), (126, 412630), (140, 371367), (180, 288841), (210, 247578), (252, 206315), (315, 165052), (420, 123789), (630, 82526), (1260, 41263)]