81456720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3499}}^1$

素因数の和:3612

約数の個数: 80

約数和(自身を含む): 255192000

約数和(自身を除く): 173735280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 97, 120, 194, 240, 291, 388, 485, 582, 776, 970, 1164, 1455, 1552, 1940, 2328, 2910, 3499, 3880, 4656, 5820, 6998, 7760, 10497, 11640, 13996, 17495, 20994, 23280, 27992, 34990, 41988, 52485, 55984, 69980, 83976, 104970, 139960, 167952, 209940, 279920, 339403, 419880, 678806, 839760, 1018209, 1357612, 1697015, 2036418, 2715224, 3394030, 4072836, 5091045, 5430448, 6788060, 8145672, 10182090, 13576120, 16291344, 20364180, 27152240, 40728360, 81456720]

約数ペア:

[(1, 81456720), (2, 40728360), (3, 27152240), (4, 20364180), (5, 16291344), (6, 13576120), (8, 10182090), (10, 8145672), (12, 6788060), (15, 5430448), (16, 5091045), (20, 4072836), (24, 3394030), (30, 2715224), (40, 2036418), (48, 1697015), (60, 1357612), (80, 1018209), (97, 839760), (120, 678806), (194, 419880), (240, 339403), (291, 279920), (388, 209940), (485, 167952), (582, 139960), (776, 104970), (970, 83976), (1164, 69980), (1455, 55984), (1552, 52485), (1940, 41988), (2328, 34990), (2910, 27992), (3499, 23280), (3880, 20994), (4656, 17495), (5820, 13996), (6998, 11640), (7760, 10497)]