7890350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 16144800

約数和(自身を除く): 8254450

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 61, 65, 122, 130, 199, 305, 325, 398, 610, 650, 793, 995, 1525, 1586, 1990, 2587, 3050, 3965, 4975, 5174, 7930, 9950, 12139, 12935, 19825, 24278, 25870, 39650, 60695, 64675, 121390, 129350, 157807, 303475, 315614, 606950, 789035, 1578070, 3945175, 7890350]

約数ペア:

[(1, 7890350), (2, 3945175), (5, 1578070), (10, 789035), (13, 606950), (25, 315614), (26, 303475), (50, 157807), (61, 129350), (65, 121390), (122, 64675), (130, 60695), (199, 39650), (305, 25870), (325, 24278), (398, 19825), (610, 12935), (650, 12139), (793, 9950), (995, 7930), (1525, 5174), (1586, 4975), (1990, 3965), (2587, 3050)]