18220264240

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1709}}^1\times {\mathrm{1877}}^1$

素因数の和:3670

約数の個数: 80

約数和(自身を含む): 43006800960

約数和(自身を除く): 24786536720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 1709, 1877, 2840, 3418, 3754, 5680, 6836, 7508, 8545, 9385, 13672, 15016, 17090, 18770, 27344, 30032, 34180, 37540, 68360, 75080, 121339, 133267, 136720, 150160, 242678, 266534, 485356, 533068, 606695, 666335, 970712, 1066136, 1213390, 1332670, 1941424, 2132272, 2426780, 2665340, 3207793, 4853560, 5330680, 6415586, 9707120, 10661360, 12831172, 16038965, 25662344, 32077930, 51324688, 64155860, 128311720, 227753303, 256623440, 455506606, 911013212, 1138766515, 1822026424, 2277533030, 3644052848, 4555066060, 9110132120, 18220264240]

約数ペア:

[(1, 18220264240), (2, 9110132120), (4, 4555066060), (5, 3644052848), (8, 2277533030), (10, 1822026424), (16, 1138766515), (20, 911013212), (40, 455506606), (71, 256623440), (80, 227753303), (142, 128311720), (284, 64155860), (355, 51324688), (568, 32077930), (710, 25662344), (1136, 16038965), (1420, 12831172), (1709, 10661360), (1877, 9707120), (2840, 6415586), (3418, 5330680), (3754, 4853560), (5680, 3207793), (6836, 2665340), (7508, 2426780), (8545, 2132272), (9385, 1941424), (13672, 1332670), (15016, 1213390), (17090, 1066136), (18770, 970712), (27344, 666335), (30032, 606695), (34180, 533068), (37540, 485356), (68360, 266534), (75080, 242678), (121339, 150160), (133267, 136720)]