320872475

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{283}}^1$

素因数の和:361

約数の個数: 96

約数和(自身を含む): 540917760

約数和(自身を除く): 220045285

約数列:

[1, 5, 7, 11, 19, 25, 31, 35, 55, 77, 95, 133, 155, 175, 209, 217, 275, 283, 341, 385, 475, 589, 665, 775, 1045, 1085, 1415, 1463, 1705, 1925, 1981, 2387, 2945, 3113, 3325, 4123, 5225, 5377, 5425, 6479, 7075, 7315, 8525, 8773, 9905, 11935, 14725, 15565, 20615, 21791, 26885, 32395, 36575, 37639, 43865, 45353, 49525, 59147, 59675, 61411, 77825, 96503, 103075, 108955, 134425, 161975, 166687, 188195, 219325, 226765, 295735, 307055, 414029, 482515, 544775, 675521, 833435, 940975, 1133825, 1166809, 1478675, 1535275, 1833557, 2070145, 2412575, 3377605, 4167175, 5834045, 9167785, 10350725, 12834899, 16888025, 29170225, 45838925, 64174495, 320872475]

約数ペア:

[(1, 320872475), (5, 64174495), (7, 45838925), (11, 29170225), (19, 16888025), (25, 12834899), (31, 10350725), (35, 9167785), (55, 5834045), (77, 4167175), (95, 3377605), (133, 2412575), (155, 2070145), (175, 1833557), (209, 1535275), (217, 1478675), (275, 1166809), (283, 1133825), (341, 940975), (385, 833435), (475, 675521), (589, 544775), (665, 482515), (775, 414029), (1045, 307055), (1085, 295735), (1415, 226765), (1463, 219325), (1705, 188195), (1925, 166687), (1981, 161975), (2387, 134425), (2945, 108955), (3113, 103075), (3325, 96503), (4123, 77825), (5225, 61411), (5377, 59675), (5425, 59147), (6479, 49525), (7075, 45353), (7315, 43865), (8525, 37639), (8773, 36575), (9905, 32395), (11935, 26885), (14725, 21791), (15565, 20615)]