2518740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1999}}^1$

素因数の和:2021

約数の個数: 72

約数和(自身を含む): 8736000

約数和(自身を除く): 6217260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 1999, 3998, 5997, 7996, 9995, 11994, 13993, 17991, 19990, 23988, 27986, 29985, 35982, 39980, 41979, 55972, 59970, 69965, 71964, 83958, 89955, 119940, 125937, 139930, 167916, 179910, 209895, 251874, 279860, 359820, 419790, 503748, 629685, 839580, 1259370, 2518740]

約数ペア:

[(1, 2518740), (2, 1259370), (3, 839580), (4, 629685), (5, 503748), (6, 419790), (7, 359820), (9, 279860), (10, 251874), (12, 209895), (14, 179910), (15, 167916), (18, 139930), (20, 125937), (21, 119940), (28, 89955), (30, 83958), (35, 71964), (36, 69965), (42, 59970), (45, 55972), (60, 41979), (63, 39980), (70, 35982), (84, 29985), (90, 27986), (105, 23988), (126, 19990), (140, 17991), (180, 13993), (210, 11994), (252, 9995), (315, 7996), (420, 5997), (630, 3998), (1260, 1999)]