78793980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{77249}}^1$

素因数の和:77278

約数の個数: 48

約数和(自身を含む): 233604000

約数和(自身を除く): 154810020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 77249, 154498, 231747, 308996, 386245, 463494, 772490, 926988, 1158735, 1313233, 1544980, 2317470, 2626466, 3939699, 4634940, 5252932, 6566165, 7879398, 13132330, 15758796, 19698495, 26264660, 39396990, 78793980]

約数ペア:

[(1, 78793980), (2, 39396990), (3, 26264660), (4, 19698495), (5, 15758796), (6, 13132330), (10, 7879398), (12, 6566165), (15, 5252932), (17, 4634940), (20, 3939699), (30, 2626466), (34, 2317470), (51, 1544980), (60, 1313233), (68, 1158735), (85, 926988), (102, 772490), (170, 463494), (204, 386245), (255, 308996), (340, 231747), (510, 154498), (1020, 77249)]