1389408176

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{61283}}^1$

素因数の和:61413

約数の個数: 40

約数和(自身を含む): 2925698160

約数和(自身を除く): 1536289984

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 208, 218, 436, 872, 1417, 1744, 2834, 5668, 11336, 22672, 61283, 122566, 245132, 490264, 796679, 980528, 1593358, 3186716, 6373432, 6679847, 12746864, 13359694, 26719388, 53438776, 86838011, 106877552, 173676022, 347352044, 694704088, 1389408176]

約数ペア:

[(1, 1389408176), (2, 694704088), (4, 347352044), (8, 173676022), (13, 106877552), (16, 86838011), (26, 53438776), (52, 26719388), (104, 13359694), (109, 12746864), (208, 6679847), (218, 6373432), (436, 3186716), (872, 1593358), (1417, 980528), (1744, 796679), (2834, 490264), (5668, 245132), (11336, 122566), (22672, 61283)]