215786760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{256889}}^1$

素因数の和:256910

約数の個数: 64

約数和(自身を含む): 739843200

約数和(自身を除く): 524056440

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, 256889, 513778, 770667, 1027556, 1284445, 1541334, 1798223, 2055112, 2568890, 3082668, 3596446, 3853335, 5137780, 5394669, 6165336, 7192892, 7706670, 8991115, 10275560, 10789338, 14385784, 15413340, 17982230, 21578676, 26973345, 30826680, 35964460, 43157352, 53946690, 71928920, 107893380, 215786760]

約数ペア:

[(1, 215786760), (2, 107893380), (3, 71928920), (4, 53946690), (5, 43157352), (6, 35964460), (7, 30826680), (8, 26973345), (10, 21578676), (12, 17982230), (14, 15413340), (15, 14385784), (20, 10789338), (21, 10275560), (24, 8991115), (28, 7706670), (30, 7192892), (35, 6165336), (40, 5394669), (42, 5137780), (56, 3853335), (60, 3596446), (70, 3082668), (84, 2568890), (105, 2055112), (120, 1798223), (140, 1541334), (168, 1284445), (210, 1027556), (280, 770667), (420, 513778), (840, 256889)]