138302780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2897}}^1$

素因数の和:2955

約数の個数: 96

約数和(自身を含む): 373911552

約数和(自身を除く): 235608772

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 55, 62, 70, 77, 110, 124, 140, 154, 155, 217, 220, 308, 310, 341, 385, 434, 620, 682, 770, 868, 1085, 1364, 1540, 1705, 2170, 2387, 2897, 3410, 4340, 4774, 5794, 6820, 9548, 11588, 11935, 14485, 20279, 23870, 28970, 31867, 40558, 47740, 57940, 63734, 81116, 89807, 101395, 127468, 159335, 179614, 202790, 223069, 318670, 359228, 405580, 446138, 449035, 628649, 637340, 892276, 898070, 987877, 1115345, 1257298, 1796140, 1975754, 2230690, 2514596, 3143245, 3951508, 4461380, 4939385, 6286490, 6915139, 9878770, 12572980, 13830278, 19757540, 27660556, 34575695, 69151390, 138302780]

約数ペア:

[(1, 138302780), (2, 69151390), (4, 34575695), (5, 27660556), (7, 19757540), (10, 13830278), (11, 12572980), (14, 9878770), (20, 6915139), (22, 6286490), (28, 4939385), (31, 4461380), (35, 3951508), (44, 3143245), (55, 2514596), (62, 2230690), (70, 1975754), (77, 1796140), (110, 1257298), (124, 1115345), (140, 987877), (154, 898070), (155, 892276), (217, 637340), (220, 628649), (308, 449035), (310, 446138), (341, 405580), (385, 359228), (434, 318670), (620, 223069), (682, 202790), (770, 179614), (868, 159335), (1085, 127468), (1364, 101395), (1540, 89807), (1705, 81116), (2170, 63734), (2387, 57940), (2897, 47740), (3410, 40558), (4340, 31867), (4774, 28970), (5794, 23870), (6820, 20279), (9548, 14485), (11588, 11935)]