661436290

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{7949}}^1$

素因数の和:8166

約数の個数: 32

約数和(自身を含む): 1220929200

約数和(自身を除く): 559492910

約数列:

[1, 2, 5, 10, 53, 106, 157, 265, 314, 530, 785, 1570, 7949, 8321, 15898, 16642, 39745, 41605, 79490, 83210, 421297, 842594, 1247993, 2106485, 2495986, 4212970, 6239965, 12479930, 66143629, 132287258, 330718145, 661436290]

約数ペア:

[(1, 661436290), (2, 330718145), (5, 132287258), (10, 66143629), (53, 12479930), (106, 6239965), (157, 4212970), (265, 2495986), (314, 2106485), (530, 1247993), (785, 842594), (1570, 421297), (7949, 83210), (8321, 79490), (15898, 41605), (16642, 39745)]