12951380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{457}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 29623440

約数和(自身を除く): 16672060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 457, 545, 914, 1090, 1417, 1828, 2180, 2285, 2834, 4570, 5668, 5941, 7085, 9140, 11882, 14170, 23764, 28340, 29705, 49813, 59410, 99626, 118820, 199252, 249065, 498130, 647569, 996260, 1295138, 2590276, 3237845, 6475690, 12951380]

約数ペア:

[(1, 12951380), (2, 6475690), (4, 3237845), (5, 2590276), (10, 1295138), (13, 996260), (20, 647569), (26, 498130), (52, 249065), (65, 199252), (109, 118820), (130, 99626), (218, 59410), (260, 49813), (436, 29705), (457, 28340), (545, 23764), (914, 14170), (1090, 11882), (1417, 9140), (1828, 7085), (2180, 5941), (2285, 5668), (2834, 4570)]