721647645

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{9413}}^1$

素因数の和:9709

約数の個数: 32

約数和(自身を含む): 1220054400

約数和(自身を除く): 498406755

約数列:

[1, 3, 5, 15, 19, 57, 95, 269, 285, 807, 1345, 4035, 5111, 9413, 15333, 25555, 28239, 47065, 76665, 141195, 178847, 536541, 894235, 2532097, 2682705, 7596291, 12660485, 37981455, 48109843, 144329529, 240549215, 721647645]

約数ペア:

[(1, 721647645), (3, 240549215), (5, 144329529), (15, 48109843), (19, 37981455), (57, 12660485), (95, 7596291), (269, 2682705), (285, 2532097), (807, 894235), (1345, 536541), (4035, 178847), (5111, 141195), (9413, 76665), (15333, 47065), (25555, 28239)]