20170089520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{21529}}^1$

素因数の和:21795

約数の個数: 120

約数和(自身を含む): 54782654400

約数和(自身を除く): 34612564880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 239, 245, 280, 392, 478, 490, 560, 784, 956, 980, 1195, 1673, 1912, 1960, 2390, 3346, 3824, 3920, 4780, 6692, 8365, 9560, 11711, 13384, 16730, 19120, 21529, 23422, 26768, 33460, 43058, 46844, 58555, 66920, 86116, 93688, 107645, 117110, 133840, 150703, 172232, 187376, 215290, 234220, 301406, 344464, 430580, 468440, 602812, 753515, 861160, 936880, 1054921, 1205624, 1507030, 1722320, 2109842, 2411248, 3014060, 4219684, 5145431, 5274605, 6028120, 8439368, 10290862, 10549210, 12056240, 16878736, 20581724, 21098420, 25727155, 36018017, 41163448, 42196840, 51454310, 72036034, 82326896, 84393680, 102908620, 144072068, 180090085, 205817240, 252126119, 288144136, 360180170, 411634480, 504252238, 576288272, 720360340, 1008504476, 1260630595, 1440720680, 2017008952, 2521261190, 2881441360, 4034017904, 5042522380, 10085044760, 20170089520]

約数ペア:

[(1, 20170089520), (2, 10085044760), (4, 5042522380), (5, 4034017904), (7, 2881441360), (8, 2521261190), (10, 2017008952), (14, 1440720680), (16, 1260630595), (20, 1008504476), (28, 720360340), (35, 576288272), (40, 504252238), (49, 411634480), (56, 360180170), (70, 288144136), (80, 252126119), (98, 205817240), (112, 180090085), (140, 144072068), (196, 102908620), (239, 84393680), (245, 82326896), (280, 72036034), (392, 51454310), (478, 42196840), (490, 41163448), (560, 36018017), (784, 25727155), (956, 21098420), (980, 20581724), (1195, 16878736), (1673, 12056240), (1912, 10549210), (1960, 10290862), (2390, 8439368), (3346, 6028120), (3824, 5274605), (3920, 5145431), (4780, 4219684), (6692, 3014060), (8365, 2411248), (9560, 2109842), (11711, 1722320), (13384, 1507030), (16730, 1205624), (19120, 1054921), (21529, 936880), (23422, 861160), (26768, 753515), (33460, 602812), (43058, 468440), (46844, 430580), (58555, 344464), (66920, 301406), (86116, 234220), (93688, 215290), (107645, 187376), (117110, 172232), (133840, 150703)]