661300

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:420

約数の個数: 36

約数和(自身を含む): 1523340

約数和(自身を除く): 862040

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 389, 425, 778, 850, 1556, 1700, 1945, 3890, 6613, 7780, 9725, 13226, 19450, 26452, 33065, 38900, 66130, 132260, 165325, 330650, 661300]

約数ペア:

[(1, 661300), (2, 330650), (4, 165325), (5, 132260), (10, 66130), (17, 38900), (20, 33065), (25, 26452), (34, 19450), (50, 13226), (68, 9725), (85, 7780), (100, 6613), (170, 3890), (340, 1945), (389, 1700), (425, 1556), (778, 850)]