128031228

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{863}}^1$

素因数の和:1203

約数の個数: 72

約数和(自身を含む): 350034048

約数和(自身を除く): 222002820

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 317, 468, 634, 863, 951, 1268, 1726, 1902, 2589, 2853, 3452, 3804, 4121, 5178, 5706, 7767, 8242, 10356, 11219, 11412, 12363, 15534, 16484, 22438, 24726, 31068, 33657, 37089, 44876, 49452, 67314, 74178, 100971, 134628, 148356, 201942, 273571, 403884, 547142, 820713, 1094284, 1641426, 2462139, 3282852, 3556423, 4924278, 7112846, 9848556, 10669269, 14225692, 21338538, 32007807, 42677076, 64015614, 128031228]

約数ペア:

[(1, 128031228), (2, 64015614), (3, 42677076), (4, 32007807), (6, 21338538), (9, 14225692), (12, 10669269), (13, 9848556), (18, 7112846), (26, 4924278), (36, 3556423), (39, 3282852), (52, 2462139), (78, 1641426), (117, 1094284), (156, 820713), (234, 547142), (317, 403884), (468, 273571), (634, 201942), (863, 148356), (951, 134628), (1268, 100971), (1726, 74178), (1902, 67314), (2589, 49452), (2853, 44876), (3452, 37089), (3804, 33657), (4121, 31068), (5178, 24726), (5706, 22438), (7767, 16484), (8242, 15534), (10356, 12363), (11219, 11412)]