20194394745

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{386977}}^1$

素因数の和:387070

約数の個数: 48

約数和(自身を含む): 38115785088

約数和(自身を除く): 17921390343

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 71, 105, 147, 213, 245, 355, 497, 735, 1065, 1491, 2485, 3479, 7455, 10437, 17395, 52185, 386977, 1160931, 1934885, 2708839, 5804655, 8126517, 13544195, 18961873, 27475367, 40632585, 56885619, 82426101, 94809365, 137376835, 192327569, 284428095, 412130505, 576982707, 961637845, 1346292983, 2884913535, 4038878949, 6731464915, 20194394745]

約数ペア:

[(1, 20194394745), (3, 6731464915), (5, 4038878949), (7, 2884913535), (15, 1346292983), (21, 961637845), (35, 576982707), (49, 412130505), (71, 284428095), (105, 192327569), (147, 137376835), (213, 94809365), (245, 82426101), (355, 56885619), (497, 40632585), (735, 27475367), (1065, 18961873), (1491, 13544195), (2485, 8126517), (3479, 5804655), (7455, 2708839), (10437, 1934885), (17395, 1160931), (52185, 386977)]