161812820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{27059}}^1$

素因数の和:27104

約数の個数: 48

約数和(自身を含む): 381870720

約数和(自身を除く): 220057900

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 5980, 27059, 54118, 108236, 135295, 270590, 351767, 541180, 622357, 703534, 1244714, 1407068, 1758835, 2489428, 3111785, 3517670, 6223570, 7035340, 8090641, 12447140, 16181282, 32362564, 40453205, 80906410, 161812820]

約数ペア:

[(1, 161812820), (2, 80906410), (4, 40453205), (5, 32362564), (10, 16181282), (13, 12447140), (20, 8090641), (23, 7035340), (26, 6223570), (46, 3517670), (52, 3111785), (65, 2489428), (92, 1758835), (115, 1407068), (130, 1244714), (230, 703534), (260, 622357), (299, 541180), (460, 351767), (598, 270590), (1196, 135295), (1495, 108236), (2990, 54118), (5980, 27059)]