90314820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1999}}^1$

素因数の和:2265

約数の個数: 72

約数和(自身を含む): 275184000

約数和(自身を除く): 184869180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 251, 502, 753, 1004, 1255, 1506, 1999, 2259, 2510, 3012, 3765, 3998, 4518, 5020, 5997, 7530, 7996, 9036, 9995, 11295, 11994, 15060, 17991, 19990, 22590, 23988, 29985, 35982, 39980, 45180, 59970, 71964, 89955, 119940, 179910, 359820, 501749, 1003498, 1505247, 2006996, 2508745, 3010494, 4515741, 5017490, 6020988, 7526235, 9031482, 10034980, 15052470, 18062964, 22578705, 30104940, 45157410, 90314820]

約数ペア:

[(1, 90314820), (2, 45157410), (3, 30104940), (4, 22578705), (5, 18062964), (6, 15052470), (9, 10034980), (10, 9031482), (12, 7526235), (15, 6020988), (18, 5017490), (20, 4515741), (30, 3010494), (36, 2508745), (45, 2006996), (60, 1505247), (90, 1003498), (180, 501749), (251, 359820), (502, 179910), (753, 119940), (1004, 89955), (1255, 71964), (1506, 59970), (1999, 45180), (2259, 39980), (2510, 35982), (3012, 29985), (3765, 23988), (3998, 22590), (4518, 19990), (5020, 17991), (5997, 15060), (7530, 11994), (7996, 11295), (9036, 9995)]