338673920

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20353}}^1$

素因数の和:20387

約数の個数: 72

約数和(自身を含む): 873675096

約数和(自身を除く): 535001176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 2080, 3328, 4160, 8320, 16640, 20353, 40706, 81412, 101765, 162824, 203530, 264589, 325648, 407060, 529178, 651296, 814120, 1058356, 1302592, 1322945, 1628240, 2116712, 2605184, 2645890, 3256480, 4233424, 5210368, 5291780, 6512960, 8466848, 10583560, 13025920, 16933696, 21167120, 26051840, 33867392, 42334240, 67734784, 84668480, 169336960, 338673920]

約数ペア:

[(1, 338673920), (2, 169336960), (4, 84668480), (5, 67734784), (8, 42334240), (10, 33867392), (13, 26051840), (16, 21167120), (20, 16933696), (26, 13025920), (32, 10583560), (40, 8466848), (52, 6512960), (64, 5291780), (65, 5210368), (80, 4233424), (104, 3256480), (128, 2645890), (130, 2605184), (160, 2116712), (208, 1628240), (256, 1322945), (260, 1302592), (320, 1058356), (416, 814120), (520, 651296), (640, 529178), (832, 407060), (1040, 325648), (1280, 264589), (1664, 203530), (2080, 162824), (3328, 101765), (4160, 81412), (8320, 40706), (16640, 20353)]