64676840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{419}}^1$

素因数の和:674

約数の個数: 64

約数和(自身を含む): 155131200

約数和(自身を除く): 90454360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 227, 340, 419, 454, 680, 838, 908, 1135, 1676, 1816, 2095, 2270, 3352, 3859, 4190, 4540, 7123, 7718, 8380, 9080, 14246, 15436, 16760, 19295, 28492, 30872, 35615, 38590, 56984, 71230, 77180, 95113, 142460, 154360, 190226, 284920, 380452, 475565, 760904, 951130, 1616921, 1902260, 3233842, 3804520, 6467684, 8084605, 12935368, 16169210, 32338420, 64676840]

約数ペア:

[(1, 64676840), (2, 32338420), (4, 16169210), (5, 12935368), (8, 8084605), (10, 6467684), (17, 3804520), (20, 3233842), (34, 1902260), (40, 1616921), (68, 951130), (85, 760904), (136, 475565), (170, 380452), (227, 284920), (340, 190226), (419, 154360), (454, 142460), (680, 95113), (838, 77180), (908, 71230), (1135, 56984), (1676, 38590), (1816, 35615), (2095, 30872), (2270, 28492), (3352, 19295), (3859, 16760), (4190, 15436), (4540, 14246), (7123, 9080), (7718, 8380)]