20173890780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{1931}}^1\times {\mathrm{6449}}^1$

素因数の和:8401

約数の個数: 120

約数和(自身を含む): 63328834800

約数和(自身を除く): 43154944020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 1931, 3862, 5793, 6449, 7724, 9655, 11586, 12898, 17379, 19310, 19347, 23172, 25796, 28965, 32245, 34758, 38620, 38694, 52137, 57930, 58041, 64490, 69516, 77388, 86895, 96735, 104274, 115860, 116082, 128980, 156411, 173790, 174123, 193470, 208548, 232164, 260685, 290205, 312822, 347580, 348246, 386940, 521370, 522369, 580410, 625644, 696492, 782055, 870615, 1042740, 1044738, 1160820, 1564110, 1741230, 2089476, 2611845, 3128220, 3482460, 5223690, 10447380, 12453019, 24906038, 37359057, 49812076, 62265095, 74718114, 112077171, 124530190, 149436228, 186795285, 224154342, 249060380, 336231513, 373590570, 448308684, 560385855, 672463026, 747181140, 1008694539, 1120771710, 1344926052, 1681157565, 2017389078, 2241543420, 3362315130, 4034778156, 5043472695, 6724630260, 10086945390, 20173890780]

約数ペア:

[(1, 20173890780), (2, 10086945390), (3, 6724630260), (4, 5043472695), (5, 4034778156), (6, 3362315130), (9, 2241543420), (10, 2017389078), (12, 1681157565), (15, 1344926052), (18, 1120771710), (20, 1008694539), (27, 747181140), (30, 672463026), (36, 560385855), (45, 448308684), (54, 373590570), (60, 336231513), (81, 249060380), (90, 224154342), (108, 186795285), (135, 149436228), (162, 124530190), (180, 112077171), (270, 74718114), (324, 62265095), (405, 49812076), (540, 37359057), (810, 24906038), (1620, 12453019), (1931, 10447380), (3862, 5223690), (5793, 3482460), (6449, 3128220), (7724, 2611845), (9655, 2089476), (11586, 1741230), (12898, 1564110), (17379, 1160820), (19310, 1044738), (19347, 1042740), (23172, 870615), (25796, 782055), (28965, 696492), (32245, 625644), (34758, 580410), (38620, 522369), (38694, 521370), (52137, 386940), (57930, 348246), (58041, 347580), (64490, 312822), (69516, 290205), (77388, 260685), (86895, 232164), (96735, 208548), (104274, 193470), (115860, 174123), (116082, 173790), (128980, 156411)]