16665840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:391

約数の個数: 120

約数和(自身を含む): 56871360

約数和(自身を除く): 40205520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 79, 80, 90, 120, 144, 158, 180, 237, 240, 293, 316, 360, 395, 474, 586, 632, 711, 720, 790, 879, 948, 1172, 1185, 1264, 1422, 1465, 1580, 1758, 1896, 2344, 2370, 2637, 2844, 2930, 3160, 3516, 3555, 3792, 4395, 4688, 4740, 5274, 5688, 5860, 6320, 7032, 7110, 8790, 9480, 10548, 11376, 11720, 13185, 14064, 14220, 17580, 18960, 21096, 23147, 23440, 26370, 28440, 35160, 42192, 46294, 52740, 56880, 69441, 70320, 92588, 105480, 115735, 138882, 185176, 208323, 210960, 231470, 277764, 347205, 370352, 416646, 462940, 555528, 694410, 833292, 925880, 1041615, 1111056, 1388820, 1666584, 1851760, 2083230, 2777640, 3333168, 4166460, 5555280, 8332920, 16665840]

約数ペア:

[(1, 16665840), (2, 8332920), (3, 5555280), (4, 4166460), (5, 3333168), (6, 2777640), (8, 2083230), (9, 1851760), (10, 1666584), (12, 1388820), (15, 1111056), (16, 1041615), (18, 925880), (20, 833292), (24, 694410), (30, 555528), (36, 462940), (40, 416646), (45, 370352), (48, 347205), (60, 277764), (72, 231470), (79, 210960), (80, 208323), (90, 185176), (120, 138882), (144, 115735), (158, 105480), (180, 92588), (237, 70320), (240, 69441), (293, 56880), (316, 52740), (360, 46294), (395, 42192), (474, 35160), (586, 28440), (632, 26370), (711, 23440), (720, 23147), (790, 21096), (879, 18960), (948, 17580), (1172, 14220), (1185, 14064), (1264, 13185), (1422, 11720), (1465, 11376), (1580, 10548), (1758, 9480), (1896, 8790), (2344, 7110), (2370, 7032), (2637, 6320), (2844, 5860), (2930, 5688), (3160, 5274), (3516, 4740), (3555, 4688), (3792, 4395)]