12911990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2027}}^1$

素因数の和:2061

約数の個数: 48

約数和(自身を含む): 29130192

約数和(自身を除く): 16218202

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 49, 65, 70, 91, 98, 130, 182, 245, 455, 490, 637, 910, 1274, 2027, 3185, 4054, 6370, 10135, 14189, 20270, 26351, 28378, 52702, 70945, 99323, 131755, 141890, 184457, 198646, 263510, 368914, 496615, 922285, 993230, 1291199, 1844570, 2582398, 6455995, 12911990]

約数ペア:

[(1, 12911990), (2, 6455995), (5, 2582398), (7, 1844570), (10, 1291199), (13, 993230), (14, 922285), (26, 496615), (35, 368914), (49, 263510), (65, 198646), (70, 184457), (91, 141890), (98, 131755), (130, 99323), (182, 70945), (245, 52702), (455, 28378), (490, 26351), (637, 20270), (910, 14189), (1274, 10135), (2027, 6370), (3185, 4054)]