64587280

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1$

素因数の和:304

約数の個数: 80

約数和(自身を含む): 155240064

約数和(自身を除く): 90652784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 83, 137, 142, 166, 274, 284, 332, 355, 415, 548, 568, 664, 685, 710, 830, 1096, 1136, 1328, 1370, 1420, 1660, 2192, 2740, 2840, 3320, 5480, 5680, 5893, 6640, 9727, 10960, 11371, 11786, 19454, 22742, 23572, 29465, 38908, 45484, 47144, 48635, 56855, 58930, 77816, 90968, 94288, 97270, 113710, 117860, 155632, 181936, 194540, 227420, 235720, 389080, 454840, 471440, 778160, 807341, 909680, 1614682, 3229364, 4036705, 6458728, 8073410, 12917456, 16146820, 32293640, 64587280]

約数ペア:

[(1, 64587280), (2, 32293640), (4, 16146820), (5, 12917456), (8, 8073410), (10, 6458728), (16, 4036705), (20, 3229364), (40, 1614682), (71, 909680), (80, 807341), (83, 778160), (137, 471440), (142, 454840), (166, 389080), (274, 235720), (284, 227420), (332, 194540), (355, 181936), (415, 155632), (548, 117860), (568, 113710), (664, 97270), (685, 94288), (710, 90968), (830, 77816), (1096, 58930), (1136, 56855), (1328, 48635), (1370, 47144), (1420, 45484), (1660, 38908), (2192, 29465), (2740, 23572), (2840, 22742), (3320, 19454), (5480, 11786), (5680, 11371), (5893, 10960), (6640, 9727)]