17715280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{491}}^1$

素因数の和:556

約数の個数: 80

約数和(自身を含む): 46122048

約数和(自身を除く): 28406768

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 164, 176, 205, 220, 328, 410, 440, 451, 491, 656, 820, 880, 902, 982, 1640, 1804, 1964, 2255, 2455, 3280, 3608, 3928, 4510, 4910, 5401, 7216, 7856, 9020, 9820, 10802, 18040, 19640, 20131, 21604, 27005, 36080, 39280, 40262, 43208, 54010, 80524, 86416, 100655, 108020, 161048, 201310, 216040, 221441, 322096, 402620, 432080, 442882, 805240, 885764, 1107205, 1610480, 1771528, 2214410, 3543056, 4428820, 8857640, 17715280]

約数ペア:

[(1, 17715280), (2, 8857640), (4, 4428820), (5, 3543056), (8, 2214410), (10, 1771528), (11, 1610480), (16, 1107205), (20, 885764), (22, 805240), (40, 442882), (41, 432080), (44, 402620), (55, 322096), (80, 221441), (82, 216040), (88, 201310), (110, 161048), (164, 108020), (176, 100655), (205, 86416), (220, 80524), (328, 54010), (410, 43208), (440, 40262), (451, 39280), (491, 36080), (656, 27005), (820, 21604), (880, 20131), (902, 19640), (982, 18040), (1640, 10802), (1804, 9820), (1964, 9020), (2255, 7856), (2455, 7216), (3280, 5401), (3608, 4910), (3928, 4510)]