315688520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{257}}^1$

素因数の和:423

約数の個数: 128

約数和(自身を含む): 842607360

約数和(自身を除く): 526918840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 107, 140, 164, 205, 214, 257, 280, 287, 328, 410, 428, 514, 535, 574, 749, 820, 856, 1028, 1070, 1148, 1285, 1435, 1498, 1640, 1799, 2056, 2140, 2296, 2570, 2870, 2996, 3598, 3745, 4280, 4387, 5140, 5740, 5992, 7196, 7490, 8774, 8995, 10280, 10537, 11480, 14392, 14980, 17548, 17990, 21074, 21935, 27499, 29960, 30709, 35096, 35980, 42148, 43870, 52685, 54998, 61418, 71960, 73759, 84296, 87740, 105370, 109996, 122836, 137495, 147518, 153545, 175480, 192493, 210740, 219992, 245672, 274990, 295036, 307090, 368795, 384986, 421480, 549980, 590072, 614180, 737590, 769972, 962465, 1099960, 1127459, 1228360, 1475180, 1539944, 1924930, 2254918, 2950360, 3849860, 4509836, 5637295, 7699720, 7892213, 9019672, 11274590, 15784426, 22549180, 31568852, 39461065, 45098360, 63137704, 78922130, 157844260, 315688520]

約数ペア:

[(1, 315688520), (2, 157844260), (4, 78922130), (5, 63137704), (7, 45098360), (8, 39461065), (10, 31568852), (14, 22549180), (20, 15784426), (28, 11274590), (35, 9019672), (40, 7892213), (41, 7699720), (56, 5637295), (70, 4509836), (82, 3849860), (107, 2950360), (140, 2254918), (164, 1924930), (205, 1539944), (214, 1475180), (257, 1228360), (280, 1127459), (287, 1099960), (328, 962465), (410, 769972), (428, 737590), (514, 614180), (535, 590072), (574, 549980), (749, 421480), (820, 384986), (856, 368795), (1028, 307090), (1070, 295036), (1148, 274990), (1285, 245672), (1435, 219992), (1498, 210740), (1640, 192493), (1799, 175480), (2056, 153545), (2140, 147518), (2296, 137495), (2570, 122836), (2870, 109996), (2996, 105370), (3598, 87740), (3745, 84296), (4280, 73759), (4387, 71960), (5140, 61418), (5740, 54998), (5992, 52685), (7196, 43870), (7490, 42148), (8774, 35980), (8995, 35096), (10280, 30709), (10537, 29960), (11480, 27499), (14392, 21935), (14980, 21074), (17548, 17990)]