90149540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{3181}}^1$

素因数の和:3312

約数の個数: 48

約数和(自身を含む): 205811760

約数和(自身を除く): 115662220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2834, 3181, 5668, 6362, 7085, 12724, 14170, 15905, 28340, 31810, 41353, 63620, 82706, 165412, 206765, 346729, 413530, 693458, 827060, 1386916, 1733645, 3467290, 4507477, 6934580, 9014954, 18029908, 22537385, 45074770, 90149540]

約数ペア:

[(1, 90149540), (2, 45074770), (4, 22537385), (5, 18029908), (10, 9014954), (13, 6934580), (20, 4507477), (26, 3467290), (52, 1733645), (65, 1386916), (109, 827060), (130, 693458), (218, 413530), (260, 346729), (436, 206765), (545, 165412), (1090, 82706), (1417, 63620), (2180, 41353), (2834, 31810), (3181, 28340), (5668, 15905), (6362, 14170), (7085, 12724)]