78904620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{787}}^1$

素因数の和:1359

約数の個数: 72

約数和(自身を含む): 240078384

約数和(自身を除く): 161173764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 557, 787, 1114, 1574, 1671, 2228, 2361, 2785, 3148, 3342, 3935, 4722, 5013, 5570, 6684, 7083, 7870, 8355, 9444, 10026, 11140, 11805, 14166, 15740, 16710, 20052, 23610, 25065, 28332, 33420, 35415, 47220, 50130, 70830, 100260, 141660, 438359, 876718, 1315077, 1753436, 2191795, 2630154, 3945231, 4383590, 5260308, 6575385, 7890462, 8767180, 13150770, 15780924, 19726155, 26301540, 39452310, 78904620]

約数ペア:

[(1, 78904620), (2, 39452310), (3, 26301540), (4, 19726155), (5, 15780924), (6, 13150770), (9, 8767180), (10, 7890462), (12, 6575385), (15, 5260308), (18, 4383590), (20, 3945231), (30, 2630154), (36, 2191795), (45, 1753436), (60, 1315077), (90, 876718), (180, 438359), (557, 141660), (787, 100260), (1114, 70830), (1574, 50130), (1671, 47220), (2228, 35415), (2361, 33420), (2785, 28332), (3148, 25065), (3342, 23610), (3935, 20052), (4722, 16710), (5013, 15740), (5570, 14166), (6684, 11805), (7083, 11140), (7870, 10026), (8355, 9444)]