20172948964

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1\times {\mathrm{479}}^1$

素因数の和:822

約数の個数: 144

約数和(自身を含む): 44493926400

約数和(自身を除く): 24320977436

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 43, 49, 76, 86, 98, 133, 172, 196, 263, 266, 301, 479, 526, 532, 602, 817, 931, 958, 1052, 1204, 1634, 1841, 1862, 1916, 2107, 3268, 3353, 3682, 3724, 4214, 4997, 5719, 6706, 7364, 8428, 9101, 9994, 11309, 11438, 12887, 13412, 18202, 19988, 20597, 22618, 22876, 23471, 25774, 34979, 36404, 40033, 41194, 45236, 46942, 51548, 63707, 69958, 79163, 80066, 82388, 93884, 125977, 127414, 139916, 144179, 158326, 160132, 214871, 244853, 251954, 254828, 288358, 316652, 391343, 429742, 445949, 489706, 503908, 554141, 576716, 782686, 859484, 881839, 891898, 979412, 1009253, 1108282, 1504097, 1565372, 1763678, 1783796, 2018506, 2216564, 2393563, 2739401, 3008194, 3527356, 4037012, 4787126, 5417011, 5478802, 6016388, 6172873, 9574252, 10528679, 10834022, 10957604, 12345746, 16754941, 19175807, 21057358, 21668044, 24691492, 33509882, 37919077, 38351614, 42114716, 67019764, 75838154, 76703228, 102923209, 117284587, 151676308, 205846418, 234569174, 265433539, 411692836, 469138348, 530867078, 720462463, 1061734156, 1440924926, 2881849852, 5043237241, 10086474482, 20172948964]

約数ペア:

[(1, 20172948964), (2, 10086474482), (4, 5043237241), (7, 2881849852), (14, 1440924926), (19, 1061734156), (28, 720462463), (38, 530867078), (43, 469138348), (49, 411692836), (76, 265433539), (86, 234569174), (98, 205846418), (133, 151676308), (172, 117284587), (196, 102923209), (263, 76703228), (266, 75838154), (301, 67019764), (479, 42114716), (526, 38351614), (532, 37919077), (602, 33509882), (817, 24691492), (931, 21668044), (958, 21057358), (1052, 19175807), (1204, 16754941), (1634, 12345746), (1841, 10957604), (1862, 10834022), (1916, 10528679), (2107, 9574252), (3268, 6172873), (3353, 6016388), (3682, 5478802), (3724, 5417011), (4214, 4787126), (4997, 4037012), (5719, 3527356), (6706, 3008194), (7364, 2739401), (8428, 2393563), (9101, 2216564), (9994, 2018506), (11309, 1783796), (11438, 1763678), (12887, 1565372), (13412, 1504097), (18202, 1108282), (19988, 1009253), (20597, 979412), (22618, 891898), (22876, 881839), (23471, 859484), (25774, 782686), (34979, 576716), (36404, 554141), (40033, 503908), (41194, 489706), (45236, 445949), (46942, 429742), (51548, 391343), (63707, 316652), (69958, 288358), (79163, 254828), (80066, 251954), (82388, 244853), (93884, 214871), (125977, 160132), (127414, 158326), (139916, 144179)]