28740420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:291

約数の個数: 120

約数和(自身を含む): 91536984

約数和(自身を除く): 62796564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 113, 135, 157, 162, 180, 226, 270, 314, 324, 339, 405, 452, 471, 540, 565, 628, 678, 785, 810, 942, 1017, 1130, 1356, 1413, 1570, 1620, 1695, 1884, 2034, 2260, 2355, 2826, 3051, 3140, 3390, 4068, 4239, 4710, 5085, 5652, 6102, 6780, 7065, 8478, 9153, 9420, 10170, 12204, 12717, 14130, 15255, 16956, 17741, 18306, 20340, 21195, 25434, 28260, 30510, 35482, 36612, 42390, 45765, 50868, 53223, 61020, 63585, 70964, 84780, 88705, 91530, 106446, 127170, 159669, 177410, 183060, 212892, 254340, 266115, 319338, 354820, 479007, 532230, 638676, 798345, 958014, 1064460, 1437021, 1596690, 1916028, 2395035, 2874042, 3193380, 4790070, 5748084, 7185105, 9580140, 14370210, 28740420]

約数ペア:

[(1, 28740420), (2, 14370210), (3, 9580140), (4, 7185105), (5, 5748084), (6, 4790070), (9, 3193380), (10, 2874042), (12, 2395035), (15, 1916028), (18, 1596690), (20, 1437021), (27, 1064460), (30, 958014), (36, 798345), (45, 638676), (54, 532230), (60, 479007), (81, 354820), (90, 319338), (108, 266115), (113, 254340), (135, 212892), (157, 183060), (162, 177410), (180, 159669), (226, 127170), (270, 106446), (314, 91530), (324, 88705), (339, 84780), (405, 70964), (452, 63585), (471, 61020), (540, 53223), (565, 50868), (628, 45765), (678, 42390), (785, 36612), (810, 35482), (942, 30510), (1017, 28260), (1130, 25434), (1356, 21195), (1413, 20340), (1570, 18306), (1620, 17741), (1695, 16956), (1884, 15255), (2034, 14130), (2260, 12717), (2355, 12204), (2826, 10170), (3051, 9420), (3140, 9153), (3390, 8478), (4068, 7065), (4239, 6780), (4710, 6102), (5085, 5652)]