42640128

素因数分解:

$2^8\times 3^3\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:255

約数の個数: 144

約数和(自身を含む): 130816000

約数和(自身を除く): 88175872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 32, 36, 48, 54, 62, 64, 72, 93, 96, 108, 124, 128, 144, 186, 192, 199, 216, 248, 256, 279, 288, 372, 384, 398, 432, 496, 558, 576, 597, 744, 768, 796, 837, 864, 992, 1116, 1152, 1194, 1488, 1592, 1674, 1728, 1791, 1984, 2232, 2304, 2388, 2976, 3184, 3348, 3456, 3582, 3968, 4464, 4776, 5373, 5952, 6169, 6368, 6696, 6912, 7164, 7936, 8928, 9552, 10746, 11904, 12338, 12736, 13392, 14328, 17856, 18507, 19104, 21492, 23808, 24676, 25472, 26784, 28656, 35712, 37014, 38208, 42984, 49352, 50944, 53568, 55521, 57312, 71424, 74028, 76416, 85968, 98704, 107136, 111042, 114624, 148056, 152832, 166563, 171936, 197408, 214272, 222084, 229248, 296112, 333126, 343872, 394816, 444168, 458496, 592224, 666252, 687744, 789632, 888336, 1184448, 1332504, 1375488, 1579264, 1776672, 2368896, 2665008, 3553344, 4737792, 5330016, 7106688, 10660032, 14213376, 21320064, 42640128]

約数ペア:

[(1, 42640128), (2, 21320064), (3, 14213376), (4, 10660032), (6, 7106688), (8, 5330016), (9, 4737792), (12, 3553344), (16, 2665008), (18, 2368896), (24, 1776672), (27, 1579264), (31, 1375488), (32, 1332504), (36, 1184448), (48, 888336), (54, 789632), (62, 687744), (64, 666252), (72, 592224), (93, 458496), (96, 444168), (108, 394816), (124, 343872), (128, 333126), (144, 296112), (186, 229248), (192, 222084), (199, 214272), (216, 197408), (248, 171936), (256, 166563), (279, 152832), (288, 148056), (372, 114624), (384, 111042), (398, 107136), (432, 98704), (496, 85968), (558, 76416), (576, 74028), (597, 71424), (744, 57312), (768, 55521), (796, 53568), (837, 50944), (864, 49352), (992, 42984), (1116, 38208), (1152, 37014), (1194, 35712), (1488, 28656), (1592, 26784), (1674, 25472), (1728, 24676), (1791, 23808), (1984, 21492), (2232, 19104), (2304, 18507), (2388, 17856), (2976, 14328), (3184, 13392), (3348, 12736), (3456, 12338), (3582, 11904), (3968, 10746), (4464, 9552), (4776, 8928), (5373, 7936), (5952, 7164), (6169, 6912), (6368, 6696)]