61380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1$

素因数の和:57

約数の個数: 72

約数和(自身を含む): 209664

約数和(自身を除く): 148284

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 31, 33, 36, 44, 45, 55, 60, 62, 66, 90, 93, 99, 110, 124, 132, 155, 165, 180, 186, 198, 220, 279, 310, 330, 341, 372, 396, 465, 495, 558, 620, 660, 682, 930, 990, 1023, 1116, 1364, 1395, 1705, 1860, 1980, 2046, 2790, 3069, 3410, 4092, 5115, 5580, 6138, 6820, 10230, 12276, 15345, 20460, 30690, 61380]

約数ペア:

[(1, 61380), (2, 30690), (3, 20460), (4, 15345), (5, 12276), (6, 10230), (9, 6820), (10, 6138), (11, 5580), (12, 5115), (15, 4092), (18, 3410), (20, 3069), (22, 2790), (30, 2046), (31, 1980), (33, 1860), (36, 1705), (44, 1395), (45, 1364), (55, 1116), (60, 1023), (62, 990), (66, 930), (90, 682), (93, 660), (99, 620), (110, 558), (124, 495), (132, 465), (155, 396), (165, 372), (180, 341), (186, 330), (198, 310), (220, 279)]