245018760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{291689}}^1$

素因数の和:291710

約数の個数: 64

約数和(自身を含む): 840067200

約数和(自身を除く): 595048440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 291689, 583378, 875067, 1166756, 1458445, 1750134, 2041823, 2333512, 2916890, 3500268, 4083646, 4375335, 5833780, 6125469, 7000536, 8167292, 8750670, 10209115, 11667560, 12250938, 16334584, 17501340, 20418230, 24501876, 30627345, 35002680, 40836460, 49003752, 61254690, 81672920, 122509380, 245018760]

約数ペア:

[(1, 245018760), (2, 122509380), (3, 81672920), (4, 61254690), (5, 49003752), (6, 40836460), (7, 35002680), (8, 30627345), (10, 24501876), (12, 20418230), (14, 17501340), (15, 16334584), (20, 12250938), (21, 11667560), (24, 10209115), (28, 8750670), (30, 8167292), (35, 7000536), (40, 6125469), (42, 5833780), (56, 4375335), (60, 4083646), (70, 3500268), (84, 2916890), (105, 2333512), (120, 2041823), (140, 1750134), (168, 1458445), (210, 1166756), (280, 875067), (420, 583378), (840, 291689)]