31381110

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{809}}^1$

素因数の和:1253

約数の個数: 48

約数和(自身を含む): 81881280

約数和(自身を除く): 50500170

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 431, 809, 862, 1293, 1618, 2155, 2427, 2586, 3879, 4045, 4310, 4854, 6465, 7281, 7758, 8090, 12135, 12930, 14562, 19395, 24270, 36405, 38790, 72810, 348679, 697358, 1046037, 1743395, 2092074, 3138111, 3486790, 5230185, 6276222, 10460370, 15690555, 31381110]

約数ペア:

[(1, 31381110), (2, 15690555), (3, 10460370), (5, 6276222), (6, 5230185), (9, 3486790), (10, 3138111), (15, 2092074), (18, 1743395), (30, 1046037), (45, 697358), (90, 348679), (431, 72810), (809, 38790), (862, 36405), (1293, 24270), (1618, 19395), (2155, 14562), (2427, 12930), (2586, 12135), (3879, 8090), (4045, 7758), (4310, 7281), (4854, 6465)]