78355980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{677}}^1$

素因数の和:1335

約数の個数: 72

約数和(自身を含む): 238401072

約数和(自身を除く): 160045092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 643, 677, 1286, 1354, 1929, 2031, 2572, 2708, 3215, 3385, 3858, 4062, 5787, 6093, 6430, 6770, 7716, 8124, 9645, 10155, 11574, 12186, 12860, 13540, 19290, 20310, 23148, 24372, 28935, 30465, 38580, 40620, 57870, 60930, 115740, 121860, 435311, 870622, 1305933, 1741244, 2176555, 2611866, 3917799, 4353110, 5223732, 6529665, 7835598, 8706220, 13059330, 15671196, 19588995, 26118660, 39177990, 78355980]

約数ペア:

[(1, 78355980), (2, 39177990), (3, 26118660), (4, 19588995), (5, 15671196), (6, 13059330), (9, 8706220), (10, 7835598), (12, 6529665), (15, 5223732), (18, 4353110), (20, 3917799), (30, 2611866), (36, 2176555), (45, 1741244), (60, 1305933), (90, 870622), (180, 435311), (643, 121860), (677, 115740), (1286, 60930), (1354, 57870), (1929, 40620), (2031, 38580), (2572, 30465), (2708, 28935), (3215, 24372), (3385, 23148), (3858, 20310), (4062, 19290), (5787, 13540), (6093, 12860), (6430, 12186), (6770, 11574), (7716, 10155), (8124, 9645)]