82991720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 223914240

約数和(自身を除く): 140922520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 61, 70, 86, 113, 122, 140, 172, 215, 226, 244, 280, 301, 305, 344, 427, 430, 452, 488, 565, 602, 610, 791, 854, 860, 904, 1130, 1204, 1220, 1505, 1582, 1708, 1720, 2135, 2260, 2408, 2440, 2623, 3010, 3164, 3416, 3955, 4270, 4520, 4859, 5246, 6020, 6328, 6893, 7910, 8540, 9718, 10492, 12040, 13115, 13786, 15820, 17080, 18361, 19436, 20984, 24295, 26230, 27572, 31640, 34013, 34465, 36722, 38872, 48251, 48590, 52460, 55144, 68026, 68930, 73444, 91805, 96502, 97180, 104920, 136052, 137860, 146888, 170065, 183610, 193004, 194360, 241255, 272104, 275720, 296399, 340130, 367220, 386008, 482510, 592798, 680260, 734440, 965020, 1185596, 1360520, 1481995, 1930040, 2074793, 2371192, 2963990, 4149586, 5927980, 8299172, 10373965, 11855960, 16598344, 20747930, 41495860, 82991720]

約数ペア:

[(1, 82991720), (2, 41495860), (4, 20747930), (5, 16598344), (7, 11855960), (8, 10373965), (10, 8299172), (14, 5927980), (20, 4149586), (28, 2963990), (35, 2371192), (40, 2074793), (43, 1930040), (56, 1481995), (61, 1360520), (70, 1185596), (86, 965020), (113, 734440), (122, 680260), (140, 592798), (172, 482510), (215, 386008), (226, 367220), (244, 340130), (280, 296399), (301, 275720), (305, 272104), (344, 241255), (427, 194360), (430, 193004), (452, 183610), (488, 170065), (565, 146888), (602, 137860), (610, 136052), (791, 104920), (854, 97180), (860, 96502), (904, 91805), (1130, 73444), (1204, 68930), (1220, 68026), (1505, 55144), (1582, 52460), (1708, 48590), (1720, 48251), (2135, 38872), (2260, 36722), (2408, 34465), (2440, 34013), (2623, 31640), (3010, 27572), (3164, 26230), (3416, 24295), (3955, 20984), (4270, 19436), (4520, 18361), (4859, 17080), (5246, 15820), (6020, 13786), (6328, 13115), (6893, 12040), (7910, 10492), (8540, 9718)]