68712640

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^2\times {\mathrm{743}}^1$

素因数の和:794

約数の個数: 84

約数和(自身を含む): 174046896

約数和(自身を除く): 105334256

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 289, 320, 340, 544, 578, 680, 743, 1088, 1156, 1360, 1445, 1486, 2312, 2720, 2890, 2972, 3715, 4624, 5440, 5780, 5944, 7430, 9248, 11560, 11888, 12631, 14860, 18496, 23120, 23776, 25262, 29720, 46240, 47552, 50524, 59440, 63155, 92480, 101048, 118880, 126310, 202096, 214727, 237760, 252620, 404192, 429454, 505240, 808384, 858908, 1010480, 1073635, 1717816, 2020960, 2147270, 3435632, 4041920, 4294540, 6871264, 8589080, 13742528, 17178160, 34356320, 68712640]

約数ペア:

[(1, 68712640), (2, 34356320), (4, 17178160), (5, 13742528), (8, 8589080), (10, 6871264), (16, 4294540), (17, 4041920), (20, 3435632), (32, 2147270), (34, 2020960), (40, 1717816), (64, 1073635), (68, 1010480), (80, 858908), (85, 808384), (136, 505240), (160, 429454), (170, 404192), (272, 252620), (289, 237760), (320, 214727), (340, 202096), (544, 126310), (578, 118880), (680, 101048), (743, 92480), (1088, 63155), (1156, 59440), (1360, 50524), (1445, 47552), (1486, 46240), (2312, 29720), (2720, 25262), (2890, 23776), (2972, 23120), (3715, 18496), (4624, 14860), (5440, 12631), (5780, 11888), (5944, 11560), (7430, 9248)]