40289540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 87091200

約数和(自身を除く): 46801660

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 191, 199, 212, 265, 382, 398, 530, 764, 796, 955, 995, 1060, 1910, 1990, 3820, 3980, 10123, 10547, 20246, 21094, 38009, 40492, 42188, 50615, 52735, 76018, 101230, 105470, 152036, 190045, 202460, 210940, 380090, 760180, 2014477, 4028954, 8057908, 10072385, 20144770, 40289540]

約数ペア:

[(1, 40289540), (2, 20144770), (4, 10072385), (5, 8057908), (10, 4028954), (20, 2014477), (53, 760180), (106, 380090), (191, 210940), (199, 202460), (212, 190045), (265, 152036), (382, 105470), (398, 101230), (530, 76018), (764, 52735), (796, 50615), (955, 42188), (995, 40492), (1060, 38009), (1910, 21094), (1990, 20246), (3820, 10547), (3980, 10123)]