398984280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1\times {\mathrm{227}}^1$

素因数の和:489

約数の個数: 128

約数和(自身を含む): 1222663680

約数和(自身を除く): 823679400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 151, 194, 227, 291, 302, 388, 453, 454, 485, 582, 604, 681, 755, 776, 906, 908, 970, 1135, 1164, 1208, 1362, 1455, 1510, 1812, 1816, 1940, 2265, 2270, 2328, 2724, 2910, 3020, 3405, 3624, 3880, 4530, 4540, 5448, 5820, 6040, 6810, 9060, 9080, 11640, 13620, 14647, 18120, 22019, 27240, 29294, 34277, 43941, 44038, 58588, 66057, 68554, 73235, 87882, 88076, 102831, 110095, 117176, 132114, 137108, 146470, 171385, 175764, 176152, 205662, 219705, 220190, 264228, 274216, 292940, 330285, 342770, 351528, 411324, 439410, 440380, 514155, 528456, 585880, 660570, 685540, 822648, 878820, 880760, 1028310, 1321140, 1371080, 1757640, 2056620, 2642280, 3324869, 4113240, 6649738, 9974607, 13299476, 16624345, 19949214, 26598952, 33248690, 39898428, 49873035, 66497380, 79796856, 99746070, 132994760, 199492140, 398984280]

約数ペア:

[(1, 398984280), (2, 199492140), (3, 132994760), (4, 99746070), (5, 79796856), (6, 66497380), (8, 49873035), (10, 39898428), (12, 33248690), (15, 26598952), (20, 19949214), (24, 16624345), (30, 13299476), (40, 9974607), (60, 6649738), (97, 4113240), (120, 3324869), (151, 2642280), (194, 2056620), (227, 1757640), (291, 1371080), (302, 1321140), (388, 1028310), (453, 880760), (454, 878820), (485, 822648), (582, 685540), (604, 660570), (681, 585880), (755, 528456), (776, 514155), (906, 440380), (908, 439410), (970, 411324), (1135, 351528), (1164, 342770), (1208, 330285), (1362, 292940), (1455, 274216), (1510, 264228), (1812, 220190), (1816, 219705), (1940, 205662), (2265, 176152), (2270, 175764), (2328, 171385), (2724, 146470), (2910, 137108), (3020, 132114), (3405, 117176), (3624, 110095), (3880, 102831), (4530, 88076), (4540, 87882), (5448, 73235), (5820, 68554), (6040, 66057), (6810, 58588), (9060, 44038), (9080, 43941), (11640, 34277), (13620, 29294), (14647, 27240), (18120, 22019)]