279492125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 402554880

約数和(自身を除く): 123062755

約数列:

[1, 5, 11, 25, 31, 55, 79, 83, 125, 155, 275, 341, 395, 415, 775, 869, 913, 1375, 1705, 1975, 2075, 2449, 2573, 3875, 4345, 4565, 6557, 8525, 9875, 10375, 12245, 12865, 21725, 22825, 26939, 28303, 32785, 42625, 61225, 64325, 72127, 108625, 114125, 134695, 141515, 163925, 203267, 306125, 321625, 360635, 673475, 707575, 819625, 1016335, 1803175, 2235937, 3367375, 3537875, 5081675, 9015875, 11179685, 25408375, 55898425, 279492125]

約数ペア:

[(1, 279492125), (5, 55898425), (11, 25408375), (25, 11179685), (31, 9015875), (55, 5081675), (79, 3537875), (83, 3367375), (125, 2235937), (155, 1803175), (275, 1016335), (341, 819625), (395, 707575), (415, 673475), (775, 360635), (869, 321625), (913, 306125), (1375, 203267), (1705, 163925), (1975, 141515), (2075, 134695), (2449, 114125), (2573, 108625), (3875, 72127), (4345, 64325), (4565, 61225), (6557, 42625), (8525, 32785), (9875, 28303), (10375, 26939), (12245, 22825), (12865, 21725)]