121380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^2$

素因数の和:53

約数の個数: 72

約数和(自身を含む): 412608

約数和(自身を除く): 291228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 289, 340, 357, 420, 476, 510, 578, 595, 714, 867, 1020, 1156, 1190, 1428, 1445, 1734, 1785, 2023, 2380, 2890, 3468, 3570, 4046, 4335, 5780, 6069, 7140, 8092, 8670, 10115, 12138, 17340, 20230, 24276, 30345, 40460, 60690, 121380]

約数ペア:

[(1, 121380), (2, 60690), (3, 40460), (4, 30345), (5, 24276), (6, 20230), (7, 17340), (10, 12138), (12, 10115), (14, 8670), (15, 8092), (17, 7140), (20, 6069), (21, 5780), (28, 4335), (30, 4046), (34, 3570), (35, 3468), (42, 2890), (51, 2380), (60, 2023), (68, 1785), (70, 1734), (84, 1445), (85, 1428), (102, 1190), (105, 1156), (119, 1020), (140, 867), (170, 714), (204, 595), (210, 578), (238, 510), (255, 476), (289, 420), (340, 357)]