280311876

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{1951}}^1$

素因数の和:2281

約数の個数: 72

約数和(自身を含む): 765949184

約数和(自身を除く): 485637308

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 307, 468, 614, 921, 1228, 1842, 1951, 2763, 3684, 3902, 3991, 5526, 5853, 7804, 7982, 11052, 11706, 11973, 15964, 17559, 23412, 23946, 25363, 35118, 35919, 47892, 50726, 70236, 71838, 76089, 101452, 143676, 152178, 228267, 304356, 456534, 598957, 913068, 1197914, 1796871, 2395828, 3593742, 5390613, 7187484, 7786441, 10781226, 15572882, 21562452, 23359323, 31145764, 46718646, 70077969, 93437292, 140155938, 280311876]

約数ペア:

[(1, 280311876), (2, 140155938), (3, 93437292), (4, 70077969), (6, 46718646), (9, 31145764), (12, 23359323), (13, 21562452), (18, 15572882), (26, 10781226), (36, 7786441), (39, 7187484), (52, 5390613), (78, 3593742), (117, 2395828), (156, 1796871), (234, 1197914), (307, 913068), (468, 598957), (614, 456534), (921, 304356), (1228, 228267), (1842, 152178), (1951, 143676), (2763, 101452), (3684, 76089), (3902, 71838), (3991, 70236), (5526, 50726), (5853, 47892), (7804, 35919), (7982, 35118), (11052, 25363), (11706, 23946), (11973, 23412), (15964, 17559)]