21592240

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:310

約数の個数: 80

約数和(自身を含む): 53434080

約数和(自身を除く): 31841840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 41, 58, 80, 82, 116, 145, 164, 205, 227, 232, 290, 328, 410, 454, 464, 580, 656, 820, 908, 1135, 1160, 1189, 1640, 1816, 2270, 2320, 2378, 3280, 3632, 4540, 4756, 5945, 6583, 9080, 9307, 9512, 11890, 13166, 18160, 18614, 19024, 23780, 26332, 32915, 37228, 46535, 47560, 52664, 65830, 74456, 93070, 95120, 105328, 131660, 148912, 186140, 263320, 269903, 372280, 526640, 539806, 744560, 1079612, 1349515, 2159224, 2699030, 4318448, 5398060, 10796120, 21592240]

約数ペア:

[(1, 21592240), (2, 10796120), (4, 5398060), (5, 4318448), (8, 2699030), (10, 2159224), (16, 1349515), (20, 1079612), (29, 744560), (40, 539806), (41, 526640), (58, 372280), (80, 269903), (82, 263320), (116, 186140), (145, 148912), (164, 131660), (205, 105328), (227, 95120), (232, 93070), (290, 74456), (328, 65830), (410, 52664), (454, 47560), (464, 46535), (580, 37228), (656, 32915), (820, 26332), (908, 23780), (1135, 19024), (1160, 18614), (1189, 18160), (1640, 13166), (1816, 11890), (2270, 9512), (2320, 9307), (2378, 9080), (3280, 6583), (3632, 5945), (4540, 4756)]