18751356

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:515

約数の個数: 72

約数和(自身を含む): 51673440

約数和(自身を除く): 32922084

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 103, 117, 156, 206, 234, 309, 389, 412, 468, 618, 778, 927, 1167, 1236, 1339, 1556, 1854, 2334, 2678, 3501, 3708, 4017, 4668, 5057, 5356, 7002, 8034, 10114, 12051, 14004, 15171, 16068, 20228, 24102, 30342, 40067, 45513, 48204, 60684, 80134, 91026, 120201, 160268, 182052, 240402, 360603, 480804, 520871, 721206, 1041742, 1442412, 1562613, 2083484, 3125226, 4687839, 6250452, 9375678, 18751356]

約数ペア:

[(1, 18751356), (2, 9375678), (3, 6250452), (4, 4687839), (6, 3125226), (9, 2083484), (12, 1562613), (13, 1442412), (18, 1041742), (26, 721206), (36, 520871), (39, 480804), (52, 360603), (78, 240402), (103, 182052), (117, 160268), (156, 120201), (206, 91026), (234, 80134), (309, 60684), (389, 48204), (412, 45513), (468, 40067), (618, 30342), (778, 24102), (927, 20228), (1167, 16068), (1236, 15171), (1339, 14004), (1556, 12051), (1854, 10114), (2334, 8034), (2678, 7002), (3501, 5356), (3708, 5057), (4017, 4668)]