15868720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{659}}^1$

素因数の和:722

約数の個数: 80

約数和(自身を含む): 43211520

約数和(自身を除く): 27342800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 659, 688, 860, 1204, 1318, 1505, 1720, 2408, 2636, 3010, 3295, 3440, 4613, 4816, 5272, 6020, 6590, 9226, 10544, 12040, 13180, 18452, 23065, 24080, 26360, 28337, 36904, 46130, 52720, 56674, 73808, 92260, 113348, 141685, 184520, 198359, 226696, 283370, 369040, 396718, 453392, 566740, 793436, 991795, 1133480, 1586872, 1983590, 2266960, 3173744, 3967180, 7934360, 15868720]

約数ペア:

[(1, 15868720), (2, 7934360), (4, 3967180), (5, 3173744), (7, 2266960), (8, 1983590), (10, 1586872), (14, 1133480), (16, 991795), (20, 793436), (28, 566740), (35, 453392), (40, 396718), (43, 369040), (56, 283370), (70, 226696), (80, 198359), (86, 184520), (112, 141685), (140, 113348), (172, 92260), (215, 73808), (280, 56674), (301, 52720), (344, 46130), (430, 36904), (560, 28337), (602, 26360), (659, 24080), (688, 23065), (860, 18452), (1204, 13180), (1318, 12040), (1505, 10544), (1720, 9226), (2408, 6590), (2636, 6020), (3010, 5272), (3295, 4816), (3440, 4613)]