18876240

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{971}}^1$

素因数の和:999

約数の個数: 120

約数和(自身を含む): 65808288

約数和(自身を除く): 46932048

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 971, 972, 1080, 1215, 1296, 1620, 1942, 1944, 2160, 2430, 2913, 3240, 3884, 3888, 4855, 4860, 5826, 6480, 7768, 8739, 9710, 9720, 11652, 14565, 15536, 17478, 19420, 19440, 23304, 26217, 29130, 34956, 38840, 43695, 46608, 52434, 58260, 69912, 77680, 78651, 87390, 104868, 116520, 131085, 139824, 157302, 174780, 209736, 233040, 235953, 262170, 314604, 349560, 393255, 419472, 471906, 524340, 629208, 699120, 786510, 943812, 1048680, 1179765, 1258416, 1573020, 1887624, 2097360, 2359530, 3146040, 3775248, 4719060, 6292080, 9438120, 18876240]

約数ペア:

[(1, 18876240), (2, 9438120), (3, 6292080), (4, 4719060), (5, 3775248), (6, 3146040), (8, 2359530), (9, 2097360), (10, 1887624), (12, 1573020), (15, 1258416), (16, 1179765), (18, 1048680), (20, 943812), (24, 786510), (27, 699120), (30, 629208), (36, 524340), (40, 471906), (45, 419472), (48, 393255), (54, 349560), (60, 314604), (72, 262170), (80, 235953), (81, 233040), (90, 209736), (108, 174780), (120, 157302), (135, 139824), (144, 131085), (162, 116520), (180, 104868), (216, 87390), (240, 78651), (243, 77680), (270, 69912), (324, 58260), (360, 52434), (405, 46608), (432, 43695), (486, 38840), (540, 34956), (648, 29130), (720, 26217), (810, 23304), (971, 19440), (972, 19420), (1080, 17478), (1215, 15536), (1296, 14565), (1620, 11652), (1942, 9720), (1944, 9710), (2160, 8739), (2430, 7768), (2913, 6480), (3240, 5826), (3884, 4860), (3888, 4855)]