20180352868

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{2659}}^1$

素因数の和:2901

約数の個数: 72

約数和(自身を含む): 38981342400

約数和(自身を除く): 18800989532

約数列:

[1, 2, 4, 13, 26, 52, 103, 109, 169, 206, 218, 338, 412, 436, 676, 1339, 1417, 2659, 2678, 2834, 5318, 5356, 5668, 10636, 11227, 17407, 18421, 22454, 34567, 34814, 36842, 44908, 69134, 69628, 73684, 138268, 145951, 273877, 289831, 291902, 449371, 547754, 579662, 583804, 898742, 1095508, 1159324, 1797484, 1897363, 3560401, 3767803, 3794726, 7120802, 7535606, 7589452, 14241604, 15071212, 29852593, 46285213, 48981439, 59705186, 92570426, 97962878, 119410372, 185140852, 195925756, 388083709, 776167418, 1552334836, 5045088217, 10090176434, 20180352868]

約数ペア:

[(1, 20180352868), (2, 10090176434), (4, 5045088217), (13, 1552334836), (26, 776167418), (52, 388083709), (103, 195925756), (109, 185140852), (169, 119410372), (206, 97962878), (218, 92570426), (338, 59705186), (412, 48981439), (436, 46285213), (676, 29852593), (1339, 15071212), (1417, 14241604), (2659, 7589452), (2678, 7535606), (2834, 7120802), (5318, 3794726), (5356, 3767803), (5668, 3560401), (10636, 1897363), (11227, 1797484), (17407, 1159324), (18421, 1095508), (22454, 898742), (34567, 583804), (34814, 579662), (36842, 547754), (44908, 449371), (69134, 291902), (69628, 289831), (73684, 273877), (138268, 145951)]