19952240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:151

約数の個数: 160

約数和(自身を含む): 59996160

約数和(自身を除く): 40043920

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 41, 44, 55, 56, 70, 77, 79, 80, 82, 88, 110, 112, 140, 154, 158, 164, 176, 205, 220, 280, 287, 308, 316, 328, 385, 395, 410, 440, 451, 553, 560, 574, 616, 632, 656, 770, 790, 820, 869, 880, 902, 1106, 1148, 1232, 1264, 1435, 1540, 1580, 1640, 1738, 1804, 2212, 2255, 2296, 2765, 2870, 3080, 3157, 3160, 3239, 3280, 3476, 3608, 4345, 4424, 4510, 4592, 5530, 5740, 6083, 6160, 6314, 6320, 6478, 6952, 7216, 8690, 8848, 9020, 11060, 11480, 12166, 12628, 12956, 13904, 15785, 16195, 17380, 18040, 22120, 22673, 22960, 24332, 25256, 25912, 30415, 31570, 32390, 34760, 35629, 36080, 44240, 45346, 48664, 50512, 51824, 60830, 63140, 64780, 69520, 71258, 90692, 97328, 113365, 121660, 126280, 129560, 142516, 178145, 181384, 226730, 243320, 249403, 252560, 259120, 285032, 356290, 362768, 453460, 486640, 498806, 570064, 712580, 906920, 997612, 1247015, 1425160, 1813840, 1995224, 2494030, 2850320, 3990448, 4988060, 9976120, 19952240]

約数ペア:

[(1, 19952240), (2, 9976120), (4, 4988060), (5, 3990448), (7, 2850320), (8, 2494030), (10, 1995224), (11, 1813840), (14, 1425160), (16, 1247015), (20, 997612), (22, 906920), (28, 712580), (35, 570064), (40, 498806), (41, 486640), (44, 453460), (55, 362768), (56, 356290), (70, 285032), (77, 259120), (79, 252560), (80, 249403), (82, 243320), (88, 226730), (110, 181384), (112, 178145), (140, 142516), (154, 129560), (158, 126280), (164, 121660), (176, 113365), (205, 97328), (220, 90692), (280, 71258), (287, 69520), (308, 64780), (316, 63140), (328, 60830), (385, 51824), (395, 50512), (410, 48664), (440, 45346), (451, 44240), (553, 36080), (560, 35629), (574, 34760), (616, 32390), (632, 31570), (656, 30415), (770, 25912), (790, 25256), (820, 24332), (869, 22960), (880, 22673), (902, 22120), (1106, 18040), (1148, 17380), (1232, 16195), (1264, 15785), (1435, 13904), (1540, 12956), (1580, 12628), (1640, 12166), (1738, 11480), (1804, 11060), (2212, 9020), (2255, 8848), (2296, 8690), (2765, 7216), (2870, 6952), (3080, 6478), (3157, 6320), (3160, 6314), (3239, 6160), (3280, 6083), (3476, 5740), (3608, 5530), (4345, 4592), (4424, 4510)]