18490284

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 49140000

約数和(自身を除く): 30649716

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 89, 116, 174, 178, 199, 261, 267, 348, 356, 398, 522, 534, 597, 796, 801, 1044, 1068, 1194, 1602, 1791, 2388, 2581, 3204, 3582, 5162, 5771, 7164, 7743, 10324, 11542, 15486, 17313, 17711, 23084, 23229, 30972, 34626, 35422, 46458, 51939, 53133, 69252, 70844, 92916, 103878, 106266, 159399, 207756, 212532, 318798, 513619, 637596, 1027238, 1540857, 2054476, 3081714, 4622571, 6163428, 9245142, 18490284]

約数ペア:

[(1, 18490284), (2, 9245142), (3, 6163428), (4, 4622571), (6, 3081714), (9, 2054476), (12, 1540857), (18, 1027238), (29, 637596), (36, 513619), (58, 318798), (87, 212532), (89, 207756), (116, 159399), (174, 106266), (178, 103878), (199, 92916), (261, 70844), (267, 69252), (348, 53133), (356, 51939), (398, 46458), (522, 35422), (534, 34626), (597, 30972), (796, 23229), (801, 23084), (1044, 17711), (1068, 17313), (1194, 15486), (1602, 11542), (1791, 10324), (2388, 7743), (2581, 7164), (3204, 5771), (3582, 5162)]