249084640

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{31771}}^1$

素因数の和:31800

約数の個数: 72

約数和(自身を含む): 684559512

約数和(自身を除く): 435474872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 31771, 63542, 127084, 158855, 222397, 254168, 317710, 444794, 508336, 635420, 889588, 1016672, 1111985, 1270840, 1556779, 1779176, 2223970, 2541680, 3113558, 3558352, 4447940, 5083360, 6227116, 7116704, 7783895, 8895880, 12454232, 15567790, 17791760, 24908464, 31135580, 35583520, 49816928, 62271160, 124542320, 249084640]

約数ペア:

[(1, 249084640), (2, 124542320), (4, 62271160), (5, 49816928), (7, 35583520), (8, 31135580), (10, 24908464), (14, 17791760), (16, 15567790), (20, 12454232), (28, 8895880), (32, 7783895), (35, 7116704), (40, 6227116), (49, 5083360), (56, 4447940), (70, 3558352), (80, 3113558), (98, 2541680), (112, 2223970), (140, 1779176), (160, 1556779), (196, 1270840), (224, 1111985), (245, 1016672), (280, 889588), (392, 635420), (490, 508336), (560, 444794), (784, 317710), (980, 254168), (1120, 222397), (1568, 158855), (1960, 127084), (3920, 63542), (7840, 31771)]