81820300

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{10357}}^1$

素因数の和:10450

約数の個数: 36

約数和(自身を含む): 179814880

約数和(自身を除く): 97994580

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1975, 3950, 7900, 10357, 20714, 41428, 51785, 103570, 207140, 258925, 517850, 818203, 1035700, 1636406, 3272812, 4091015, 8182030, 16364060, 20455075, 40910150, 81820300]

約数ペア:

[(1, 81820300), (2, 40910150), (4, 20455075), (5, 16364060), (10, 8182030), (20, 4091015), (25, 3272812), (50, 1636406), (79, 1035700), (100, 818203), (158, 517850), (316, 258925), (395, 207140), (790, 103570), (1580, 51785), (1975, 41428), (3950, 20714), (7900, 10357)]