991313570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{331543}}^1$

素因数の和:331586

約数の個数: 32

約数和(自身を含む): 2005178112

約数和(自身を除く): 1013864542

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 331543, 663086, 1657715, 3315430, 4310059, 7625489, 8620118, 15250978, 21550295, 38127445, 43100590, 76254890, 99131357, 198262714, 495656785, 991313570]

約数ペア:

[(1, 991313570), (2, 495656785), (5, 198262714), (10, 99131357), (13, 76254890), (23, 43100590), (26, 38127445), (46, 21550295), (65, 15250978), (115, 8620118), (130, 7625489), (230, 4310059), (299, 3315430), (598, 1657715), (1495, 663086), (2990, 331543)]