133648520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1\times {\mathrm{359}}^1$

素因数の和:638

約数の個数: 64

約数和(自身を含む): 310262400

約数和(自身を除く): 176613880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 227, 328, 359, 410, 454, 718, 820, 908, 1135, 1436, 1640, 1795, 1816, 2270, 2872, 3590, 4540, 7180, 9080, 9307, 14360, 14719, 18614, 29438, 37228, 46535, 58876, 73595, 74456, 81493, 93070, 117752, 147190, 162986, 186140, 294380, 325972, 372280, 407465, 588760, 651944, 814930, 1629860, 3259720, 3341213, 6682426, 13364852, 16706065, 26729704, 33412130, 66824260, 133648520]

約数ペア:

[(1, 133648520), (2, 66824260), (4, 33412130), (5, 26729704), (8, 16706065), (10, 13364852), (20, 6682426), (40, 3341213), (41, 3259720), (82, 1629860), (164, 814930), (205, 651944), (227, 588760), (328, 407465), (359, 372280), (410, 325972), (454, 294380), (718, 186140), (820, 162986), (908, 147190), (1135, 117752), (1436, 93070), (1640, 81493), (1795, 74456), (1816, 73595), (2270, 58876), (2872, 46535), (3590, 37228), (4540, 29438), (7180, 18614), (9080, 14719), (9307, 14360)]