2451280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2357}}^1$

素因数の和:2383

約数の個数: 40

約数和(自身を含む): 6140232

約数和(自身を除く): 3688952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2357, 4714, 9428, 11785, 18856, 23570, 30641, 37712, 47140, 61282, 94280, 122564, 153205, 188560, 245128, 306410, 490256, 612820, 1225640, 2451280]

約数ペア:

[(1, 2451280), (2, 1225640), (4, 612820), (5, 490256), (8, 306410), (10, 245128), (13, 188560), (16, 153205), (20, 122564), (26, 94280), (40, 61282), (52, 47140), (65, 37712), (80, 30641), (104, 23570), (130, 18856), (208, 11785), (260, 9428), (520, 4714), (1040, 2357)]