90780492080

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{88301}}^1$

素因数の和:88566

約数の個数: 80

約数和(自身を含む): 215222349888

約数和(自身を除く): 124441857808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 181, 284, 355, 362, 568, 710, 724, 905, 1136, 1420, 1448, 1810, 2840, 2896, 3620, 5680, 7240, 12851, 14480, 25702, 51404, 64255, 88301, 102808, 128510, 176602, 205616, 257020, 353204, 441505, 514040, 706408, 883010, 1028080, 1412816, 1766020, 3532040, 6269371, 7064080, 12538742, 15982481, 25077484, 31346855, 31964962, 50154968, 62693710, 63929924, 79912405, 100309936, 125387420, 127859848, 159824810, 250774840, 255719696, 319649620, 501549680, 639299240, 1134756151, 1278598480, 2269512302, 4539024604, 5673780755, 9078049208, 11347561510, 18156098416, 22695123020, 45390246040, 90780492080]

約数ペア:

[(1, 90780492080), (2, 45390246040), (4, 22695123020), (5, 18156098416), (8, 11347561510), (10, 9078049208), (16, 5673780755), (20, 4539024604), (40, 2269512302), (71, 1278598480), (80, 1134756151), (142, 639299240), (181, 501549680), (284, 319649620), (355, 255719696), (362, 250774840), (568, 159824810), (710, 127859848), (724, 125387420), (905, 100309936), (1136, 79912405), (1420, 63929924), (1448, 62693710), (1810, 50154968), (2840, 31964962), (2896, 31346855), (3620, 25077484), (5680, 15982481), (7240, 12538742), (12851, 7064080), (14480, 6269371), (25702, 3532040), (51404, 1766020), (64255, 1412816), (88301, 1028080), (102808, 883010), (128510, 706408), (176602, 514040), (205616, 441505), (257020, 353204)]