64404440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 149960160

約数和(自身を除く): 85555720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 173, 205, 227, 328, 346, 410, 454, 692, 820, 865, 908, 1135, 1384, 1640, 1730, 1816, 2270, 3460, 4540, 6920, 7093, 9080, 9307, 14186, 18614, 28372, 35465, 37228, 39271, 46535, 56744, 70930, 74456, 78542, 93070, 141860, 157084, 186140, 196355, 283720, 314168, 372280, 392710, 785420, 1570840, 1610111, 3220222, 6440444, 8050555, 12880888, 16101110, 32202220, 64404440]

約数ペア:

[(1, 64404440), (2, 32202220), (4, 16101110), (5, 12880888), (8, 8050555), (10, 6440444), (20, 3220222), (40, 1610111), (41, 1570840), (82, 785420), (164, 392710), (173, 372280), (205, 314168), (227, 283720), (328, 196355), (346, 186140), (410, 157084), (454, 141860), (692, 93070), (820, 78542), (865, 74456), (908, 70930), (1135, 56744), (1384, 46535), (1640, 39271), (1730, 37228), (1816, 35465), (2270, 28372), (3460, 18614), (4540, 14186), (6920, 9307), (7093, 9080)]