20759280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1291}}^1$

素因数の和:1374

約数の個数: 80

約数和(自身を含む): 65364864

約数和(自身を除く): 44605584

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 67, 80, 120, 134, 201, 240, 268, 335, 402, 536, 670, 804, 1005, 1072, 1291, 1340, 1608, 2010, 2582, 2680, 3216, 3873, 4020, 5164, 5360, 6455, 7746, 8040, 10328, 12910, 15492, 16080, 19365, 20656, 25820, 30984, 38730, 51640, 61968, 77460, 86497, 103280, 154920, 172994, 259491, 309840, 345988, 432485, 518982, 691976, 864970, 1037964, 1297455, 1383952, 1729940, 2075928, 2594910, 3459880, 4151856, 5189820, 6919760, 10379640, 20759280]

約数ペア:

[(1, 20759280), (2, 10379640), (3, 6919760), (4, 5189820), (5, 4151856), (6, 3459880), (8, 2594910), (10, 2075928), (12, 1729940), (15, 1383952), (16, 1297455), (20, 1037964), (24, 864970), (30, 691976), (40, 518982), (48, 432485), (60, 345988), (67, 309840), (80, 259491), (120, 172994), (134, 154920), (201, 103280), (240, 86497), (268, 77460), (335, 61968), (402, 51640), (536, 38730), (670, 30984), (804, 25820), (1005, 20656), (1072, 19365), (1291, 16080), (1340, 15492), (1608, 12910), (2010, 10328), (2582, 8040), (2680, 7746), (3216, 6455), (3873, 5360), (4020, 5164)]