20163480720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{439}}^1\times {\mathrm{907}}^1$

素因数の和:1573

約数の個数: 160

約数和(自身を含む): 63015490560

約数和(自身を除く): 42852009840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 211, 240, 422, 439, 633, 844, 878, 907, 1055, 1266, 1317, 1688, 1756, 1814, 2110, 2195, 2532, 2634, 2721, 3165, 3376, 3512, 3628, 4220, 4390, 4535, 5064, 5268, 5442, 6330, 6585, 7024, 7256, 8440, 8780, 9070, 10128, 10536, 10884, 12660, 13170, 13605, 14512, 16880, 17560, 18140, 21072, 21768, 25320, 26340, 27210, 35120, 36280, 43536, 50640, 52680, 54420, 72560, 92629, 105360, 108840, 185258, 191377, 217680, 277887, 370516, 382754, 398173, 463145, 555774, 574131, 741032, 765508, 796346, 926290, 956885, 1111548, 1148262, 1194519, 1389435, 1482064, 1531016, 1592692, 1852580, 1913770, 1990865, 2223096, 2296524, 2389038, 2778870, 2870655, 3062032, 3185384, 3705160, 3827540, 3981730, 4446192, 4593048, 4778076, 5557740, 5741310, 5972595, 6370768, 7410320, 7655080, 7963460, 9186096, 9556152, 11115480, 11482620, 11945190, 15310160, 15926920, 19112304, 22230960, 22965240, 23890380, 31853840, 45930480, 47780760, 84014503, 95561520, 168029006, 252043509, 336058012, 420072515, 504087018, 672116024, 840145030, 1008174036, 1260217545, 1344232048, 1680290060, 2016348072, 2520435090, 3360580120, 4032696144, 5040870180, 6721160240, 10081740360, 20163480720]

約数ペア:

[(1, 20163480720), (2, 10081740360), (3, 6721160240), (4, 5040870180), (5, 4032696144), (6, 3360580120), (8, 2520435090), (10, 2016348072), (12, 1680290060), (15, 1344232048), (16, 1260217545), (20, 1008174036), (24, 840145030), (30, 672116024), (40, 504087018), (48, 420072515), (60, 336058012), (80, 252043509), (120, 168029006), (211, 95561520), (240, 84014503), (422, 47780760), (439, 45930480), (633, 31853840), (844, 23890380), (878, 22965240), (907, 22230960), (1055, 19112304), (1266, 15926920), (1317, 15310160), (1688, 11945190), (1756, 11482620), (1814, 11115480), (2110, 9556152), (2195, 9186096), (2532, 7963460), (2634, 7655080), (2721, 7410320), (3165, 6370768), (3376, 5972595), (3512, 5741310), (3628, 5557740), (4220, 4778076), (4390, 4593048), (4535, 4446192), (5064, 3981730), (5268, 3827540), (5442, 3705160), (6330, 3185384), (6585, 3062032), (7024, 2870655), (7256, 2778870), (8440, 2389038), (8780, 2296524), (9070, 2223096), (10128, 1990865), (10536, 1913770), (10884, 1852580), (12660, 1592692), (13170, 1531016), (13605, 1482064), (14512, 1389435), (16880, 1194519), (17560, 1148262), (18140, 1111548), (21072, 956885), (21768, 926290), (25320, 796346), (26340, 765508), (27210, 741032), (35120, 574131), (36280, 555774), (43536, 463145), (50640, 398173), (52680, 382754), (54420, 370516), (72560, 277887), (92629, 217680), (105360, 191377), (108840, 185258)]