20347742960

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1\times {\mathrm{499}}^1$

素因数の和:863

約数の個数: 160

約数和(自身を含む): 50517600000

約数和(自身を除く): 30169857040

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 139, 152, 190, 193, 278, 304, 380, 386, 499, 556, 695, 760, 772, 965, 998, 1112, 1390, 1520, 1544, 1930, 1996, 2224, 2495, 2641, 2780, 3088, 3667, 3860, 3992, 4990, 5282, 5560, 7334, 7720, 7984, 9481, 9980, 10564, 11120, 13205, 14668, 15440, 18335, 18962, 19960, 21128, 26410, 26827, 29336, 36670, 37924, 39920, 42256, 47405, 52820, 53654, 58672, 69361, 73340, 75848, 94810, 96307, 105640, 107308, 134135, 138722, 146680, 151696, 189620, 192614, 211280, 214616, 268270, 277444, 293360, 346805, 379240, 385228, 429232, 481535, 509713, 536540, 554888, 693610, 758480, 770456, 963070, 1019426, 1073080, 1109776, 1317859, 1387220, 1540912, 1829833, 1926140, 2038852, 2146160, 2548565, 2635718, 2774440, 3659666, 3852280, 4077704, 5097130, 5271436, 5548880, 6589295, 7319332, 7704560, 8155408, 9149165, 10194260, 10542872, 13178590, 13386673, 14638664, 18298330, 20388520, 21085744, 26357180, 26773346, 29277328, 36596660, 40777040, 52714360, 53546692, 66933365, 73193320, 105428720, 107093384, 133866730, 146386640, 214186768, 254346787, 267733460, 508693574, 535466920, 1017387148, 1070933840, 1271733935, 2034774296, 2543467870, 4069548592, 5086935740, 10173871480, 20347742960]

約数ペア:

[(1, 20347742960), (2, 10173871480), (4, 5086935740), (5, 4069548592), (8, 2543467870), (10, 2034774296), (16, 1271733935), (19, 1070933840), (20, 1017387148), (38, 535466920), (40, 508693574), (76, 267733460), (80, 254346787), (95, 214186768), (139, 146386640), (152, 133866730), (190, 107093384), (193, 105428720), (278, 73193320), (304, 66933365), (380, 53546692), (386, 52714360), (499, 40777040), (556, 36596660), (695, 29277328), (760, 26773346), (772, 26357180), (965, 21085744), (998, 20388520), (1112, 18298330), (1390, 14638664), (1520, 13386673), (1544, 13178590), (1930, 10542872), (1996, 10194260), (2224, 9149165), (2495, 8155408), (2641, 7704560), (2780, 7319332), (3088, 6589295), (3667, 5548880), (3860, 5271436), (3992, 5097130), (4990, 4077704), (5282, 3852280), (5560, 3659666), (7334, 2774440), (7720, 2635718), (7984, 2548565), (9481, 2146160), (9980, 2038852), (10564, 1926140), (11120, 1829833), (13205, 1540912), (14668, 1387220), (15440, 1317859), (18335, 1109776), (18962, 1073080), (19960, 1019426), (21128, 963070), (26410, 770456), (26827, 758480), (29336, 693610), (36670, 554888), (37924, 536540), (39920, 509713), (42256, 481535), (47405, 429232), (52820, 385228), (53654, 379240), (58672, 346805), (69361, 293360), (73340, 277444), (75848, 268270), (94810, 214616), (96307, 211280), (105640, 192614), (107308, 189620), (134135, 151696), (138722, 146680)]