12681320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{1097}}^1$

素因数の和:1142

約数の個数: 48

約数和(自身を含む): 30337740

約数和(自身を除く): 17656420

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 289, 340, 578, 680, 1097, 1156, 1445, 2194, 2312, 2890, 4388, 5485, 5780, 8776, 10970, 11560, 18649, 21940, 37298, 43880, 74596, 93245, 149192, 186490, 317033, 372980, 634066, 745960, 1268132, 1585165, 2536264, 3170330, 6340660, 12681320]

約数ペア:

[(1, 12681320), (2, 6340660), (4, 3170330), (5, 2536264), (8, 1585165), (10, 1268132), (17, 745960), (20, 634066), (34, 372980), (40, 317033), (68, 186490), (85, 149192), (136, 93245), (170, 74596), (289, 43880), (340, 37298), (578, 21940), (680, 18649), (1097, 11560), (1156, 10970), (1445, 8776), (2194, 5780), (2312, 5485), (2890, 4388)]