646816

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:97

約数の個数: 48

約数和(自身を含む): 1428840

約数和(自身を除く): 782024

約数列:

[1, 2, 4, 8, 16, 17, 29, 32, 34, 41, 58, 68, 82, 116, 136, 164, 232, 272, 328, 464, 493, 544, 656, 697, 928, 986, 1189, 1312, 1394, 1972, 2378, 2788, 3944, 4756, 5576, 7888, 9512, 11152, 15776, 19024, 20213, 22304, 38048, 40426, 80852, 161704, 323408, 646816]

約数ペア:

[(1, 646816), (2, 323408), (4, 161704), (8, 80852), (16, 40426), (17, 38048), (29, 22304), (32, 20213), (34, 19024), (41, 15776), (58, 11152), (68, 9512), (82, 7888), (116, 5576), (136, 4756), (164, 3944), (232, 2788), (272, 2378), (328, 1972), (464, 1394), (493, 1312), (544, 1189), (656, 986), (697, 928)]