78661660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7297}}^1$

素因数の和:7331

約数の個数: 72

約数和(自身を含む): 209656944

約数和(自身を除く): 130995284

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 7297, 10780, 14594, 29188, 36485, 51079, 72970, 80267, 102158, 145940, 160534, 204316, 255395, 321068, 357553, 401335, 510790, 561869, 715106, 802670, 1021580, 1123738, 1430212, 1605340, 1787765, 2247476, 2809345, 3575530, 3933083, 5618690, 7151060, 7866166, 11237380, 15732332, 19665415, 39330830, 78661660]

約数ペア:

[(1, 78661660), (2, 39330830), (4, 19665415), (5, 15732332), (7, 11237380), (10, 7866166), (11, 7151060), (14, 5618690), (20, 3933083), (22, 3575530), (28, 2809345), (35, 2247476), (44, 1787765), (49, 1605340), (55, 1430212), (70, 1123738), (77, 1021580), (98, 802670), (110, 715106), (140, 561869), (154, 510790), (196, 401335), (220, 357553), (245, 321068), (308, 255395), (385, 204316), (490, 160534), (539, 145940), (770, 102158), (980, 80267), (1078, 72970), (1540, 51079), (2156, 36485), (2695, 29188), (5390, 14594), (7297, 10780)]