280856940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{51439}}^1$

素因数の和:51471

約数の個数: 96

約数和(自身を含む): 967895040

約数和(自身を除く): 687038100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 51439, 102878, 154317, 205756, 257195, 308634, 360073, 514390, 617268, 668707, 720146, 771585, 1028780, 1080219, 1337414, 1440292, 1543170, 1800365, 2006121, 2160438, 2674828, 3086340, 3343535, 3600730, 4012242, 4320876, 4680949, 5401095, 6687070, 7201460, 8024484, 9361898, 10030605, 10802190, 13374140, 14042847, 18723796, 20061210, 21604380, 23404745, 28085694, 40122420, 46809490, 56171388, 70214235, 93618980, 140428470, 280856940]

約数ペア:

[(1, 280856940), (2, 140428470), (3, 93618980), (4, 70214235), (5, 56171388), (6, 46809490), (7, 40122420), (10, 28085694), (12, 23404745), (13, 21604380), (14, 20061210), (15, 18723796), (20, 14042847), (21, 13374140), (26, 10802190), (28, 10030605), (30, 9361898), (35, 8024484), (39, 7201460), (42, 6687070), (52, 5401095), (60, 4680949), (65, 4320876), (70, 4012242), (78, 3600730), (84, 3343535), (91, 3086340), (105, 2674828), (130, 2160438), (140, 2006121), (156, 1800365), (182, 1543170), (195, 1440292), (210, 1337414), (260, 1080219), (273, 1028780), (364, 771585), (390, 720146), (420, 668707), (455, 617268), (546, 514390), (780, 360073), (910, 308634), (1092, 257195), (1365, 205756), (1820, 154317), (2730, 102878), (5460, 51439)]