220776296

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{47}}^2$

素因数の和:175

約数の個数: 72

約数和(自身を含む): 470652210

約数和(自身を除く): 249875914

約数列:

[1, 2, 4, 8, 13, 26, 31, 47, 52, 62, 94, 104, 124, 188, 248, 376, 403, 611, 806, 961, 1222, 1457, 1612, 1922, 2209, 2444, 2914, 3224, 3844, 4418, 4888, 5828, 7688, 8836, 11656, 12493, 17672, 18941, 24986, 28717, 37882, 45167, 49972, 57434, 68479, 75764, 90334, 99944, 114868, 136958, 151528, 180668, 229736, 273916, 361336, 547832, 587171, 890227, 1174342, 1780454, 2122849, 2348684, 3560908, 4245698, 4697368, 7121816, 8491396, 16982792, 27597037, 55194074, 110388148, 220776296]

約数ペア:

[(1, 220776296), (2, 110388148), (4, 55194074), (8, 27597037), (13, 16982792), (26, 8491396), (31, 7121816), (47, 4697368), (52, 4245698), (62, 3560908), (94, 2348684), (104, 2122849), (124, 1780454), (188, 1174342), (248, 890227), (376, 587171), (403, 547832), (611, 361336), (806, 273916), (961, 229736), (1222, 180668), (1457, 151528), (1612, 136958), (1922, 114868), (2209, 99944), (2444, 90334), (2914, 75764), (3224, 68479), (3844, 57434), (4418, 49972), (4888, 45167), (5828, 37882), (7688, 28717), (8836, 24986), (11656, 18941), (12493, 17672)]