221462040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:481

約数の個数: 128

約数和(自身を含む): 686568960

約数和(自身を除く): 465106920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 167, 172, 215, 257, 258, 334, 344, 430, 501, 514, 516, 645, 668, 771, 835, 860, 1002, 1028, 1032, 1285, 1290, 1336, 1542, 1670, 1720, 2004, 2056, 2505, 2570, 2580, 3084, 3340, 3855, 4008, 5010, 5140, 5160, 6168, 6680, 7181, 7710, 10020, 10280, 11051, 14362, 15420, 20040, 21543, 22102, 28724, 30840, 33153, 35905, 42919, 43086, 44204, 55255, 57448, 66306, 71810, 85838, 86172, 88408, 107715, 110510, 128757, 132612, 143620, 165765, 171676, 172344, 214595, 215430, 221020, 257514, 265224, 287240, 331530, 343352, 429190, 430860, 442040, 515028, 643785, 663060, 858380, 861720, 1030056, 1287570, 1326120, 1716760, 1845517, 2575140, 3691034, 5150280, 5536551, 7382068, 9227585, 11073102, 14764136, 18455170, 22146204, 27682755, 36910340, 44292408, 55365510, 73820680, 110731020, 221462040]

約数ペア:

[(1, 221462040), (2, 110731020), (3, 73820680), (4, 55365510), (5, 44292408), (6, 36910340), (8, 27682755), (10, 22146204), (12, 18455170), (15, 14764136), (20, 11073102), (24, 9227585), (30, 7382068), (40, 5536551), (43, 5150280), (60, 3691034), (86, 2575140), (120, 1845517), (129, 1716760), (167, 1326120), (172, 1287570), (215, 1030056), (257, 861720), (258, 858380), (334, 663060), (344, 643785), (430, 515028), (501, 442040), (514, 430860), (516, 429190), (645, 343352), (668, 331530), (771, 287240), (835, 265224), (860, 257514), (1002, 221020), (1028, 215430), (1032, 214595), (1285, 172344), (1290, 171676), (1336, 165765), (1542, 143620), (1670, 132612), (1720, 128757), (2004, 110510), (2056, 107715), (2505, 88408), (2570, 86172), (2580, 85838), (3084, 71810), (3340, 66306), (3855, 57448), (4008, 55255), (5010, 44204), (5140, 43086), (5160, 42919), (6168, 35905), (6680, 33153), (7181, 30840), (7710, 28724), (10020, 22102), (10280, 21543), (11051, 20040), (14362, 15420)]