18815914480

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1\times {\mathrm{751}}^1$

素因数の和:1247

約数の個数: 160

約数和(自身を含む): 48581462016

約数和(自身を除く): 29765547536

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 71, 80, 88, 110, 142, 176, 220, 284, 355, 401, 440, 568, 710, 751, 781, 802, 880, 1136, 1420, 1502, 1562, 1604, 2005, 2840, 3004, 3124, 3208, 3755, 3905, 4010, 4411, 5680, 6008, 6248, 6416, 7510, 7810, 8020, 8261, 8822, 12016, 12496, 15020, 15620, 16040, 16522, 17644, 22055, 28471, 30040, 31240, 32080, 33044, 35288, 41305, 44110, 53321, 56942, 60080, 62480, 66088, 70576, 82610, 88220, 106642, 113884, 132176, 142355, 165220, 176440, 213284, 227768, 266605, 284710, 301151, 313181, 330440, 352880, 426568, 455536, 533210, 569420, 586531, 602302, 626362, 660880, 853136, 1066420, 1138840, 1173062, 1204604, 1252724, 1505755, 1565905, 2132840, 2277680, 2346124, 2409208, 2505448, 2932655, 3011510, 3131810, 3312661, 4265680, 4692248, 4818416, 5010896, 5865310, 6023020, 6263620, 6625322, 9384496, 11730620, 12046040, 12527240, 13250644, 16563305, 21381721, 23461240, 24092080, 25054480, 26501288, 33126610, 42763442, 46922480, 53002576, 66253220, 85526884, 106908605, 132506440, 171053768, 213817210, 235198931, 265012880, 342107536, 427634420, 470397862, 855268840, 940795724, 1175994655, 1710537680, 1881591448, 2351989310, 3763182896, 4703978620, 9407957240, 18815914480]

約数ペア:

[(1, 18815914480), (2, 9407957240), (4, 4703978620), (5, 3763182896), (8, 2351989310), (10, 1881591448), (11, 1710537680), (16, 1175994655), (20, 940795724), (22, 855268840), (40, 470397862), (44, 427634420), (55, 342107536), (71, 265012880), (80, 235198931), (88, 213817210), (110, 171053768), (142, 132506440), (176, 106908605), (220, 85526884), (284, 66253220), (355, 53002576), (401, 46922480), (440, 42763442), (568, 33126610), (710, 26501288), (751, 25054480), (781, 24092080), (802, 23461240), (880, 21381721), (1136, 16563305), (1420, 13250644), (1502, 12527240), (1562, 12046040), (1604, 11730620), (2005, 9384496), (2840, 6625322), (3004, 6263620), (3124, 6023020), (3208, 5865310), (3755, 5010896), (3905, 4818416), (4010, 4692248), (4411, 4265680), (5680, 3312661), (6008, 3131810), (6248, 3011510), (6416, 2932655), (7510, 2505448), (7810, 2409208), (8020, 2346124), (8261, 2277680), (8822, 2132840), (12016, 1565905), (12496, 1505755), (15020, 1252724), (15620, 1204604), (16040, 1173062), (16522, 1138840), (17644, 1066420), (22055, 853136), (28471, 660880), (30040, 626362), (31240, 602302), (32080, 586531), (33044, 569420), (35288, 533210), (41305, 455536), (44110, 426568), (53321, 352880), (56942, 330440), (60080, 313181), (62480, 301151), (66088, 284710), (70576, 266605), (82610, 227768), (88220, 213284), (106642, 176440), (113884, 165220), (132176, 142355)]