81884320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{647}}^1$

素因数の和:782

約数の個数: 96

約数和(自身を含む): 223388928

約数和(自身を除く): 141504608

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 113, 140, 160, 224, 226, 280, 452, 560, 565, 647, 791, 904, 1120, 1130, 1294, 1582, 1808, 2260, 2588, 3164, 3235, 3616, 3955, 4520, 4529, 5176, 6328, 6470, 7910, 9040, 9058, 10352, 12656, 12940, 15820, 18080, 18116, 20704, 22645, 25312, 25880, 31640, 36232, 45290, 51760, 63280, 72464, 73111, 90580, 103520, 126560, 144928, 146222, 181160, 292444, 362320, 365555, 511777, 584888, 724640, 731110, 1023554, 1169776, 1462220, 2047108, 2339552, 2558885, 2924440, 4094216, 5117770, 5848880, 8188432, 10235540, 11697760, 16376864, 20471080, 40942160, 81884320]

約数ペア:

[(1, 81884320), (2, 40942160), (4, 20471080), (5, 16376864), (7, 11697760), (8, 10235540), (10, 8188432), (14, 5848880), (16, 5117770), (20, 4094216), (28, 2924440), (32, 2558885), (35, 2339552), (40, 2047108), (56, 1462220), (70, 1169776), (80, 1023554), (112, 731110), (113, 724640), (140, 584888), (160, 511777), (224, 365555), (226, 362320), (280, 292444), (452, 181160), (560, 146222), (565, 144928), (647, 126560), (791, 103520), (904, 90580), (1120, 73111), (1130, 72464), (1294, 63280), (1582, 51760), (1808, 45290), (2260, 36232), (2588, 31640), (3164, 25880), (3235, 25312), (3616, 22645), (3955, 20704), (4520, 18116), (4529, 18080), (5176, 15820), (6328, 12940), (6470, 12656), (7910, 10352), (9040, 9058)]