31097080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:221

約数の個数: 128

約数和(自身を含む): 87091200

約数和(自身を除く): 55994120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 47, 56, 68, 70, 85, 94, 119, 136, 139, 140, 170, 188, 235, 238, 278, 280, 329, 340, 376, 470, 476, 556, 595, 658, 680, 695, 799, 940, 952, 973, 1112, 1190, 1316, 1390, 1598, 1645, 1880, 1946, 2363, 2380, 2632, 2780, 3196, 3290, 3892, 3995, 4726, 4760, 4865, 5560, 5593, 6392, 6533, 6580, 7784, 7990, 9452, 9730, 11186, 11815, 13066, 13160, 15980, 16541, 18904, 19460, 22372, 23630, 26132, 27965, 31960, 32665, 33082, 38920, 44744, 45731, 47260, 52264, 55930, 65330, 66164, 82705, 91462, 94520, 111061, 111860, 130660, 132328, 165410, 182924, 222122, 223720, 228655, 261320, 330820, 365848, 444244, 457310, 555305, 661640, 777427, 888488, 914620, 1110610, 1554854, 1829240, 2221220, 3109708, 3887135, 4442440, 6219416, 7774270, 15548540, 31097080]

約数ペア:

[(1, 31097080), (2, 15548540), (4, 7774270), (5, 6219416), (7, 4442440), (8, 3887135), (10, 3109708), (14, 2221220), (17, 1829240), (20, 1554854), (28, 1110610), (34, 914620), (35, 888488), (40, 777427), (47, 661640), (56, 555305), (68, 457310), (70, 444244), (85, 365848), (94, 330820), (119, 261320), (136, 228655), (139, 223720), (140, 222122), (170, 182924), (188, 165410), (235, 132328), (238, 130660), (278, 111860), (280, 111061), (329, 94520), (340, 91462), (376, 82705), (470, 66164), (476, 65330), (556, 55930), (595, 52264), (658, 47260), (680, 45731), (695, 44744), (799, 38920), (940, 33082), (952, 32665), (973, 31960), (1112, 27965), (1190, 26132), (1316, 23630), (1390, 22372), (1598, 19460), (1645, 18904), (1880, 16541), (1946, 15980), (2363, 13160), (2380, 13066), (2632, 11815), (2780, 11186), (3196, 9730), (3290, 9452), (3892, 7990), (3995, 7784), (4726, 6580), (4760, 6533), (4865, 6392), (5560, 5593)]