18900450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{433}}^1$

素因数の和:548

約数の個数: 72

約数和(自身を含む): 51421188

約数和(自身を除く): 32520738

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 97, 150, 194, 225, 291, 433, 450, 485, 582, 866, 873, 970, 1299, 1455, 1746, 2165, 2425, 2598, 2910, 3897, 4330, 4365, 4850, 6495, 7275, 7794, 8730, 10825, 12990, 14550, 19485, 21650, 21825, 32475, 38970, 42001, 43650, 64950, 84002, 97425, 126003, 194850, 210005, 252006, 378009, 420010, 630015, 756018, 1050025, 1260030, 1890045, 2100050, 3150075, 3780090, 6300150, 9450225, 18900450]

約数ペア:

[(1, 18900450), (2, 9450225), (3, 6300150), (5, 3780090), (6, 3150075), (9, 2100050), (10, 1890045), (15, 1260030), (18, 1050025), (25, 756018), (30, 630015), (45, 420010), (50, 378009), (75, 252006), (90, 210005), (97, 194850), (150, 126003), (194, 97425), (225, 84002), (291, 64950), (433, 43650), (450, 42001), (485, 38970), (582, 32475), (866, 21825), (873, 21650), (970, 19485), (1299, 14550), (1455, 12990), (1746, 10825), (2165, 8730), (2425, 7794), (2598, 7275), (2910, 6495), (3897, 4850), (4330, 4365)]