81240270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{257}}^2$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 200512368

約数和(自身を除く): 119272098

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 123, 205, 246, 257, 410, 514, 615, 771, 1230, 1285, 1542, 2570, 3855, 7710, 10537, 21074, 31611, 52685, 63222, 66049, 105370, 132098, 158055, 198147, 316110, 330245, 396294, 660490, 990735, 1981470, 2708009, 5416018, 8124027, 13540045, 16248054, 27080090, 40620135, 81240270]

約数ペア:

[(1, 81240270), (2, 40620135), (3, 27080090), (5, 16248054), (6, 13540045), (10, 8124027), (15, 5416018), (30, 2708009), (41, 1981470), (82, 990735), (123, 660490), (205, 396294), (246, 330245), (257, 316110), (410, 198147), (514, 158055), (615, 132098), (771, 105370), (1230, 66049), (1285, 63222), (1542, 52685), (2570, 31611), (3855, 21074), (7710, 10537)]