1285143560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:663

約数の個数: 128

約数和(自身を含む): 3172608000

約数和(自身を除く): 1887464440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 47, 68, 79, 85, 94, 136, 158, 170, 188, 235, 316, 340, 376, 395, 470, 509, 632, 680, 790, 799, 940, 1018, 1343, 1580, 1598, 1880, 2036, 2545, 2686, 3160, 3196, 3713, 3995, 4072, 5090, 5372, 6392, 6715, 7426, 7990, 8653, 10180, 10744, 13430, 14852, 15980, 17306, 18565, 20360, 23923, 26860, 29704, 31960, 34612, 37130, 40211, 43265, 47846, 53720, 63121, 69224, 74260, 80422, 86530, 95692, 119615, 126242, 148520, 160844, 173060, 191384, 201055, 239230, 252484, 315605, 321688, 346120, 402110, 406691, 478460, 504968, 631210, 683587, 804220, 813382, 956920, 1262420, 1367174, 1608440, 1626764, 1889917, 2033455, 2524840, 2734348, 3253528, 3417935, 3779834, 4066910, 5468696, 6835870, 7559668, 8133820, 9449585, 13671740, 15119336, 16267640, 18899170, 27343480, 32128589, 37798340, 64257178, 75596680, 128514356, 160642945, 257028712, 321285890, 642571780, 1285143560]

約数ペア:

[(1, 1285143560), (2, 642571780), (4, 321285890), (5, 257028712), (8, 160642945), (10, 128514356), (17, 75596680), (20, 64257178), (34, 37798340), (40, 32128589), (47, 27343480), (68, 18899170), (79, 16267640), (85, 15119336), (94, 13671740), (136, 9449585), (158, 8133820), (170, 7559668), (188, 6835870), (235, 5468696), (316, 4066910), (340, 3779834), (376, 3417935), (395, 3253528), (470, 2734348), (509, 2524840), (632, 2033455), (680, 1889917), (790, 1626764), (799, 1608440), (940, 1367174), (1018, 1262420), (1343, 956920), (1580, 813382), (1598, 804220), (1880, 683587), (2036, 631210), (2545, 504968), (2686, 478460), (3160, 406691), (3196, 402110), (3713, 346120), (3995, 321688), (4072, 315605), (5090, 252484), (5372, 239230), (6392, 201055), (6715, 191384), (7426, 173060), (7990, 160844), (8653, 148520), (10180, 126242), (10744, 119615), (13430, 95692), (14852, 86530), (15980, 80422), (17306, 74260), (18565, 69224), (20360, 63121), (23923, 53720), (26860, 47846), (29704, 43265), (31960, 40211), (34612, 37130)]