18201525

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{241}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 32408640

約数和(自身を除く): 14207115

約数列:

[1, 3, 5, 15, 19, 25, 53, 57, 75, 95, 159, 241, 265, 285, 475, 723, 795, 1007, 1205, 1325, 1425, 3021, 3615, 3975, 4579, 5035, 6025, 12773, 13737, 15105, 18075, 22895, 25175, 38319, 63865, 68685, 75525, 114475, 191595, 242687, 319325, 343425, 728061, 957975, 1213435, 3640305, 6067175, 18201525]

約数ペア:

[(1, 18201525), (3, 6067175), (5, 3640305), (15, 1213435), (19, 957975), (25, 728061), (53, 343425), (57, 319325), (75, 242687), (95, 191595), (159, 114475), (241, 75525), (265, 68685), (285, 63865), (475, 38319), (723, 25175), (795, 22895), (1007, 18075), (1205, 15105), (1325, 13737), (1425, 12773), (3021, 6025), (3615, 5035), (3975, 4579)]