205349375

素因数分解:

$5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:306

約数の個数: 80

約数和(自身を含む): 340091136

約数和(自身を除く): 134741761

約数列:

[1, 5, 7, 11, 17, 25, 35, 55, 77, 85, 119, 125, 175, 187, 251, 275, 385, 425, 595, 625, 875, 935, 1255, 1309, 1375, 1757, 1925, 2125, 2761, 2975, 4267, 4375, 4675, 6275, 6545, 6875, 8785, 9625, 10625, 13805, 14875, 19327, 21335, 23375, 29869, 31375, 32725, 43925, 46937, 48125, 69025, 74375, 96635, 106675, 116875, 149345, 156875, 163625, 219625, 234685, 328559, 345125, 483175, 533375, 746725, 818125, 1098125, 1173425, 1642795, 1725625, 2415875, 2666875, 3733625, 5867125, 8213975, 12079375, 18668125, 29335625, 41069875, 205349375]

約数ペア:

[(1, 205349375), (5, 41069875), (7, 29335625), (11, 18668125), (17, 12079375), (25, 8213975), (35, 5867125), (55, 3733625), (77, 2666875), (85, 2415875), (119, 1725625), (125, 1642795), (175, 1173425), (187, 1098125), (251, 818125), (275, 746725), (385, 533375), (425, 483175), (595, 345125), (625, 328559), (875, 234685), (935, 219625), (1255, 163625), (1309, 156875), (1375, 149345), (1757, 116875), (1925, 106675), (2125, 96635), (2761, 74375), (2975, 69025), (4267, 48125), (4375, 46937), (4675, 43925), (6275, 32725), (6545, 31375), (6875, 29869), (8785, 23375), (9625, 21335), (10625, 19327), (13805, 14875)]