261388960

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{557}}^1$

素因数の和:998

約数の個数: 96

約数和(自身を含む): 708704640

約数和(自身を除く): 447315680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 419, 557, 560, 838, 1114, 1120, 1676, 2095, 2228, 2785, 2933, 3352, 3899, 4190, 4456, 5570, 5866, 6704, 7798, 8380, 8912, 11140, 11732, 13408, 14665, 15596, 16760, 17824, 19495, 22280, 23464, 29330, 31192, 33520, 38990, 44560, 46928, 58660, 62384, 67040, 77980, 89120, 93856, 117320, 124768, 155960, 233383, 234640, 311920, 466766, 469280, 623840, 933532, 1166915, 1633681, 1867064, 2333830, 3267362, 3734128, 4667660, 6534724, 7468256, 8168405, 9335320, 13069448, 16336810, 18670640, 26138896, 32673620, 37341280, 52277792, 65347240, 130694480, 261388960]

約数ペア:

[(1, 261388960), (2, 130694480), (4, 65347240), (5, 52277792), (7, 37341280), (8, 32673620), (10, 26138896), (14, 18670640), (16, 16336810), (20, 13069448), (28, 9335320), (32, 8168405), (35, 7468256), (40, 6534724), (56, 4667660), (70, 3734128), (80, 3267362), (112, 2333830), (140, 1867064), (160, 1633681), (224, 1166915), (280, 933532), (419, 623840), (557, 469280), (560, 466766), (838, 311920), (1114, 234640), (1120, 233383), (1676, 155960), (2095, 124768), (2228, 117320), (2785, 93856), (2933, 89120), (3352, 77980), (3899, 67040), (4190, 62384), (4456, 58660), (5570, 46928), (5866, 44560), (6704, 38990), (7798, 33520), (8380, 31192), (8912, 29330), (11140, 23464), (11732, 22280), (13408, 19495), (14665, 17824), (15596, 16760)]