21929760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:275

約数の個数: 144

約数和(自身を含む): 76088376

約数和(自身を除く): 54158616

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 97, 120, 144, 157, 160, 180, 194, 240, 288, 291, 314, 360, 388, 471, 480, 485, 582, 628, 720, 776, 785, 873, 942, 970, 1164, 1256, 1413, 1440, 1455, 1552, 1570, 1746, 1884, 1940, 2328, 2355, 2512, 2826, 2910, 3104, 3140, 3492, 3768, 3880, 4365, 4656, 4710, 5024, 5652, 5820, 6280, 6984, 7065, 7536, 7760, 8730, 9312, 9420, 11304, 11640, 12560, 13968, 14130, 15072, 15229, 15520, 17460, 18840, 22608, 23280, 25120, 27936, 28260, 30458, 34920, 37680, 45216, 45687, 46560, 56520, 60916, 69840, 75360, 76145, 91374, 113040, 121832, 137061, 139680, 152290, 182748, 226080, 228435, 243664, 274122, 304580, 365496, 456870, 487328, 548244, 609160, 685305, 730992, 913740, 1096488, 1218320, 1370610, 1461984, 1827480, 2192976, 2436640, 2741220, 3654960, 4385952, 5482440, 7309920, 10964880, 21929760]

約数ペア:

[(1, 21929760), (2, 10964880), (3, 7309920), (4, 5482440), (5, 4385952), (6, 3654960), (8, 2741220), (9, 2436640), (10, 2192976), (12, 1827480), (15, 1461984), (16, 1370610), (18, 1218320), (20, 1096488), (24, 913740), (30, 730992), (32, 685305), (36, 609160), (40, 548244), (45, 487328), (48, 456870), (60, 365496), (72, 304580), (80, 274122), (90, 243664), (96, 228435), (97, 226080), (120, 182748), (144, 152290), (157, 139680), (160, 137061), (180, 121832), (194, 113040), (240, 91374), (288, 76145), (291, 75360), (314, 69840), (360, 60916), (388, 56520), (471, 46560), (480, 45687), (485, 45216), (582, 37680), (628, 34920), (720, 30458), (776, 28260), (785, 27936), (873, 25120), (942, 23280), (970, 22608), (1164, 18840), (1256, 17460), (1413, 15520), (1440, 15229), (1455, 15072), (1552, 14130), (1570, 13968), (1746, 12560), (1884, 11640), (1940, 11304), (2328, 9420), (2355, 9312), (2512, 8730), (2826, 7760), (2910, 7536), (3104, 7065), (3140, 6984), (3492, 6280), (3768, 5820), (3880, 5652), (4365, 5024), (4656, 4710)]