2018706680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71789}}^1$

素因数の和:71856

約数の個数: 64

約数和(自身を含む): 4910436000

約数和(自身を除く): 2891729320

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 37, 38, 40, 74, 76, 95, 148, 152, 185, 190, 296, 370, 380, 703, 740, 760, 1406, 1480, 2812, 3515, 5624, 7030, 14060, 28120, 71789, 143578, 287156, 358945, 574312, 717890, 1363991, 1435780, 2656193, 2727982, 2871560, 5312386, 5455964, 6819955, 10624772, 10911928, 13280965, 13639910, 21249544, 26561930, 27279820, 50467667, 53123860, 54559640, 100935334, 106247720, 201870668, 252338335, 403741336, 504676670, 1009353340, 2018706680]

約数ペア:

[(1, 2018706680), (2, 1009353340), (4, 504676670), (5, 403741336), (8, 252338335), (10, 201870668), (19, 106247720), (20, 100935334), (37, 54559640), (38, 53123860), (40, 50467667), (74, 27279820), (76, 26561930), (95, 21249544), (148, 13639910), (152, 13280965), (185, 10911928), (190, 10624772), (296, 6819955), (370, 5455964), (380, 5312386), (703, 2871560), (740, 2727982), (760, 2656193), (1406, 1435780), (1480, 1363991), (2812, 717890), (3515, 574312), (5624, 358945), (7030, 287156), (14060, 143578), (28120, 71789)]