71261320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3187}}^1$

素因数の和:3254

約数の個数: 64

約数和(自身を含む): 176742720

約数和(自身を除く): 105481400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 430, 520, 559, 860, 1118, 1720, 2236, 2795, 3187, 4472, 5590, 6374, 11180, 12748, 15935, 22360, 25496, 31870, 41431, 63740, 82862, 127480, 137041, 165724, 207155, 274082, 331448, 414310, 548164, 685205, 828620, 1096328, 1370410, 1657240, 1781533, 2740820, 3563066, 5481640, 7126132, 8907665, 14252264, 17815330, 35630660, 71261320]

約数ペア:

[(1, 71261320), (2, 35630660), (4, 17815330), (5, 14252264), (8, 8907665), (10, 7126132), (13, 5481640), (20, 3563066), (26, 2740820), (40, 1781533), (43, 1657240), (52, 1370410), (65, 1096328), (86, 828620), (104, 685205), (130, 548164), (172, 414310), (215, 331448), (260, 274082), (344, 207155), (430, 165724), (520, 137041), (559, 127480), (860, 82862), (1118, 63740), (1720, 41431), (2236, 31870), (2795, 25496), (3187, 22360), (4472, 15935), (5590, 12748), (6374, 11180)]