80207790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{205661}}^1$

素因数の和:205684

約数の個数: 32

約数和(自身を含む): 207307296

約数和(自身を除く): 127099506

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 205661, 411322, 616983, 1028305, 1233966, 2056610, 2673593, 3084915, 5347186, 6169830, 8020779, 13367965, 16041558, 26735930, 40103895, 80207790]

約数ペア:

[(1, 80207790), (2, 40103895), (3, 26735930), (5, 16041558), (6, 13367965), (10, 8020779), (13, 6169830), (15, 5347186), (26, 3084915), (30, 2673593), (39, 2056610), (65, 1233966), (78, 1028305), (130, 616983), (195, 411322), (390, 205661)]