291360520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 744215040

約数和(自身を除く): 452854520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 73, 88, 94, 110, 146, 188, 193, 220, 235, 292, 365, 376, 386, 440, 470, 517, 584, 730, 772, 803, 940, 965, 1034, 1460, 1544, 1606, 1880, 1930, 2068, 2123, 2585, 2920, 3212, 3431, 3860, 4015, 4136, 4246, 5170, 6424, 6862, 7720, 8030, 8492, 9071, 10340, 10615, 13724, 14089, 16060, 16984, 17155, 18142, 20680, 21230, 27448, 28178, 32120, 34310, 36284, 37741, 42460, 45355, 56356, 68620, 70445, 72568, 75482, 84920, 90710, 99781, 112712, 137240, 140890, 150964, 154979, 181420, 188705, 199562, 281780, 301928, 309958, 362840, 377410, 399124, 498905, 563560, 619916, 662183, 754820, 774895, 798248, 997810, 1239832, 1324366, 1509640, 1549790, 1995620, 2648732, 3099580, 3310915, 3991240, 5297464, 6199160, 6621830, 7284013, 13243660, 14568026, 26487320, 29136052, 36420065, 58272104, 72840130, 145680260, 291360520]

約数ペア:

[(1, 291360520), (2, 145680260), (4, 72840130), (5, 58272104), (8, 36420065), (10, 29136052), (11, 26487320), (20, 14568026), (22, 13243660), (40, 7284013), (44, 6621830), (47, 6199160), (55, 5297464), (73, 3991240), (88, 3310915), (94, 3099580), (110, 2648732), (146, 1995620), (188, 1549790), (193, 1509640), (220, 1324366), (235, 1239832), (292, 997810), (365, 798248), (376, 774895), (386, 754820), (440, 662183), (470, 619916), (517, 563560), (584, 498905), (730, 399124), (772, 377410), (803, 362840), (940, 309958), (965, 301928), (1034, 281780), (1460, 199562), (1544, 188705), (1606, 181420), (1880, 154979), (1930, 150964), (2068, 140890), (2123, 137240), (2585, 112712), (2920, 99781), (3212, 90710), (3431, 84920), (3860, 75482), (4015, 72568), (4136, 70445), (4246, 68620), (5170, 56356), (6424, 45355), (6862, 42460), (7720, 37741), (8030, 36284), (8492, 34310), (9071, 32120), (10340, 28178), (10615, 27448), (13724, 21230), (14089, 20680), (16060, 18142), (16984, 17155)]