85445540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1\times {\mathrm{541}}^1$

素因数の和:752

約数の個数: 48

約数和(自身を含む): 184388400

約数和(自身を除く): 98942860

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 149, 212, 265, 298, 530, 541, 596, 745, 1060, 1082, 1490, 2164, 2705, 2980, 5410, 7897, 10820, 15794, 28673, 31588, 39485, 57346, 78970, 80609, 114692, 143365, 157940, 161218, 286730, 322436, 403045, 573460, 806090, 1612180, 4272277, 8544554, 17089108, 21361385, 42722770, 85445540]

約数ペア:

[(1, 85445540), (2, 42722770), (4, 21361385), (5, 17089108), (10, 8544554), (20, 4272277), (53, 1612180), (106, 806090), (149, 573460), (212, 403045), (265, 322436), (298, 286730), (530, 161218), (541, 157940), (596, 143365), (745, 114692), (1060, 80609), (1082, 78970), (1490, 57346), (2164, 39485), (2705, 31588), (2980, 28673), (5410, 15794), (7897, 10820)]