20156568160

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1399}}^1\times {\mathrm{5297}}^1$

素因数の和:6728

約数の個数: 96

約数和(自身を含む): 50466628800

約数和(自身を除く): 30310060640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 1399, 2720, 2798, 5297, 5596, 6995, 10594, 11192, 13990, 21188, 22384, 23783, 26485, 27980, 42376, 44768, 47566, 52970, 55960, 84752, 90049, 95132, 105940, 111920, 118915, 169504, 180098, 190264, 211880, 223840, 237830, 360196, 380528, 423760, 450245, 475660, 720392, 761056, 847520, 900490, 951320, 1440784, 1800980, 1902640, 2881568, 3601960, 3805280, 7203920, 7410503, 14407840, 14821006, 29642012, 37052515, 59284024, 74105030, 118568048, 125978551, 148210060, 237136096, 251957102, 296420120, 503914204, 592840240, 629892755, 1007828408, 1185680480, 1259785510, 2015656816, 2519571020, 4031313632, 5039142040, 10078284080, 20156568160]

約数ペア:

[(1, 20156568160), (2, 10078284080), (4, 5039142040), (5, 4031313632), (8, 2519571020), (10, 2015656816), (16, 1259785510), (17, 1185680480), (20, 1007828408), (32, 629892755), (34, 592840240), (40, 503914204), (68, 296420120), (80, 251957102), (85, 237136096), (136, 148210060), (160, 125978551), (170, 118568048), (272, 74105030), (340, 59284024), (544, 37052515), (680, 29642012), (1360, 14821006), (1399, 14407840), (2720, 7410503), (2798, 7203920), (5297, 3805280), (5596, 3601960), (6995, 2881568), (10594, 1902640), (11192, 1800980), (13990, 1440784), (21188, 951320), (22384, 900490), (23783, 847520), (26485, 761056), (27980, 720392), (42376, 475660), (44768, 450245), (47566, 423760), (52970, 380528), (55960, 360196), (84752, 237830), (90049, 223840), (95132, 211880), (105940, 190264), (111920, 180098), (118915, 169504)]