20120907720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{293}}^1\times {\mathrm{2521}}^1$

素因数の和:3055

約数の個数: 128

約数和(自身を含む): 60859693440

約数和(自身を除く): 40738785720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 227, 293, 454, 586, 681, 879, 908, 1135, 1172, 1362, 1465, 1758, 1816, 2270, 2344, 2521, 2724, 2930, 3405, 3516, 4395, 4540, 5042, 5448, 5860, 6810, 7032, 7563, 8790, 9080, 10084, 11720, 12605, 13620, 15126, 17580, 20168, 25210, 27240, 30252, 35160, 37815, 50420, 60504, 66511, 75630, 100840, 133022, 151260, 199533, 266044, 302520, 332555, 399066, 532088, 572267, 665110, 738653, 798132, 997665, 1144534, 1330220, 1477306, 1596264, 1716801, 1995330, 2215959, 2289068, 2660440, 2861335, 2954612, 3433602, 3693265, 3990660, 4431918, 4578136, 5722670, 5909224, 6867204, 7386530, 7981320, 8584005, 8863836, 11079795, 11445340, 13734408, 14773060, 17168010, 17727672, 22159590, 22890680, 29546120, 34336020, 44319180, 68672040, 88638360, 167674231, 335348462, 503022693, 670696924, 838371155, 1006045386, 1341393848, 1676742310, 2012090772, 2515113465, 3353484620, 4024181544, 5030226930, 6706969240, 10060453860, 20120907720]

約数ペア:

[(1, 20120907720), (2, 10060453860), (3, 6706969240), (4, 5030226930), (5, 4024181544), (6, 3353484620), (8, 2515113465), (10, 2012090772), (12, 1676742310), (15, 1341393848), (20, 1006045386), (24, 838371155), (30, 670696924), (40, 503022693), (60, 335348462), (120, 167674231), (227, 88638360), (293, 68672040), (454, 44319180), (586, 34336020), (681, 29546120), (879, 22890680), (908, 22159590), (1135, 17727672), (1172, 17168010), (1362, 14773060), (1465, 13734408), (1758, 11445340), (1816, 11079795), (2270, 8863836), (2344, 8584005), (2521, 7981320), (2724, 7386530), (2930, 6867204), (3405, 5909224), (3516, 5722670), (4395, 4578136), (4540, 4431918), (5042, 3990660), (5448, 3693265), (5860, 3433602), (6810, 2954612), (7032, 2861335), (7563, 2660440), (8790, 2289068), (9080, 2215959), (10084, 1995330), (11720, 1716801), (12605, 1596264), (13620, 1477306), (15126, 1330220), (17580, 1144534), (20168, 997665), (25210, 798132), (27240, 738653), (30252, 665110), (35160, 572267), (37815, 532088), (50420, 399066), (60504, 332555), (66511, 302520), (75630, 266044), (100840, 199533), (133022, 151260)]