18565680

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:323

約数の個数: 160

約数和(自身を含む): 67567104

約数和(自身を除く): 49001424

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 43, 48, 56, 60, 70, 80, 84, 86, 105, 112, 120, 129, 140, 168, 172, 210, 215, 240, 257, 258, 280, 301, 336, 344, 420, 430, 514, 516, 560, 602, 645, 688, 771, 840, 860, 903, 1028, 1032, 1204, 1285, 1290, 1505, 1542, 1680, 1720, 1799, 1806, 2056, 2064, 2408, 2570, 2580, 3010, 3084, 3440, 3598, 3612, 3855, 4112, 4515, 4816, 5140, 5160, 5397, 6020, 6168, 7196, 7224, 7710, 8995, 9030, 10280, 10320, 10794, 11051, 12040, 12336, 14392, 14448, 15420, 17990, 18060, 20560, 21588, 22102, 24080, 26985, 28784, 30840, 33153, 35980, 36120, 43176, 44204, 53970, 55255, 61680, 66306, 71960, 72240, 77357, 86352, 88408, 107940, 110510, 132612, 143920, 154714, 165765, 176816, 215880, 221020, 232071, 265224, 309428, 331530, 386785, 431760, 442040, 464142, 530448, 618856, 663060, 773570, 884080, 928284, 1160355, 1237712, 1326120, 1547140, 1856568, 2320710, 2652240, 3094280, 3713136, 4641420, 6188560, 9282840, 18565680]

約数ペア:

[(1, 18565680), (2, 9282840), (3, 6188560), (4, 4641420), (5, 3713136), (6, 3094280), (7, 2652240), (8, 2320710), (10, 1856568), (12, 1547140), (14, 1326120), (15, 1237712), (16, 1160355), (20, 928284), (21, 884080), (24, 773570), (28, 663060), (30, 618856), (35, 530448), (40, 464142), (42, 442040), (43, 431760), (48, 386785), (56, 331530), (60, 309428), (70, 265224), (80, 232071), (84, 221020), (86, 215880), (105, 176816), (112, 165765), (120, 154714), (129, 143920), (140, 132612), (168, 110510), (172, 107940), (210, 88408), (215, 86352), (240, 77357), (257, 72240), (258, 71960), (280, 66306), (301, 61680), (336, 55255), (344, 53970), (420, 44204), (430, 43176), (514, 36120), (516, 35980), (560, 33153), (602, 30840), (645, 28784), (688, 26985), (771, 24080), (840, 22102), (860, 21588), (903, 20560), (1028, 18060), (1032, 17990), (1204, 15420), (1285, 14448), (1290, 14392), (1505, 12336), (1542, 12040), (1680, 11051), (1720, 10794), (1799, 10320), (1806, 10280), (2056, 9030), (2064, 8995), (2408, 7710), (2570, 7224), (2580, 7196), (3010, 6168), (3084, 6020), (3440, 5397), (3598, 5160), (3612, 5140), (3855, 4816), (4112, 4515)]