1904659640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1\times {\mathrm{191}}^1$

素因数の和:493

約数の個数: 128

約数和(自身を含む): 4706795520

約数和(自身を除く): 2802135880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 127, 130, 151, 191, 254, 260, 302, 382, 508, 520, 604, 635, 755, 764, 955, 1016, 1208, 1270, 1510, 1528, 1651, 1910, 1963, 2483, 2540, 3020, 3302, 3820, 3926, 4966, 5080, 6040, 6604, 7640, 7852, 8255, 9815, 9932, 12415, 13208, 15704, 16510, 19177, 19630, 19864, 24257, 24830, 28841, 33020, 38354, 39260, 48514, 49660, 57682, 66040, 76708, 78520, 95885, 97028, 99320, 115364, 121285, 144205, 153416, 191770, 194056, 230728, 242570, 249301, 288410, 315341, 374933, 383540, 485140, 498602, 576820, 630682, 749866, 767080, 970280, 997204, 1153640, 1246505, 1261364, 1499732, 1576705, 1874665, 1994408, 2493010, 2522728, 2999464, 3153410, 3662807, 3749330, 4986020, 6306820, 7325614, 7498660, 9972040, 12613640, 14651228, 14997320, 18314035, 29302456, 36628070, 47616491, 73256140, 95232982, 146512280, 190465964, 238082455, 380931928, 476164910, 952329820, 1904659640]

約数ペア:

[(1, 1904659640), (2, 952329820), (4, 476164910), (5, 380931928), (8, 238082455), (10, 190465964), (13, 146512280), (20, 95232982), (26, 73256140), (40, 47616491), (52, 36628070), (65, 29302456), (104, 18314035), (127, 14997320), (130, 14651228), (151, 12613640), (191, 9972040), (254, 7498660), (260, 7325614), (302, 6306820), (382, 4986020), (508, 3749330), (520, 3662807), (604, 3153410), (635, 2999464), (755, 2522728), (764, 2493010), (955, 1994408), (1016, 1874665), (1208, 1576705), (1270, 1499732), (1510, 1261364), (1528, 1246505), (1651, 1153640), (1910, 997204), (1963, 970280), (2483, 767080), (2540, 749866), (3020, 630682), (3302, 576820), (3820, 498602), (3926, 485140), (4966, 383540), (5080, 374933), (6040, 315341), (6604, 288410), (7640, 249301), (7852, 242570), (8255, 230728), (9815, 194056), (9932, 191770), (12415, 153416), (13208, 144205), (15704, 121285), (16510, 115364), (19177, 99320), (19630, 97028), (19864, 95885), (24257, 78520), (24830, 76708), (28841, 66040), (33020, 57682), (38354, 49660), (39260, 48514)]