28596520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 68428800

約数和(自身を除く): 39832280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 191, 197, 380, 382, 394, 760, 764, 788, 955, 985, 1528, 1576, 1910, 1970, 3629, 3743, 3820, 3940, 7258, 7486, 7640, 7880, 14516, 14972, 18145, 18715, 29032, 29944, 36290, 37430, 37627, 72580, 74860, 75254, 145160, 149720, 150508, 188135, 301016, 376270, 714913, 752540, 1429826, 1505080, 2859652, 3574565, 5719304, 7149130, 14298260, 28596520]

約数ペア:

[(1, 28596520), (2, 14298260), (4, 7149130), (5, 5719304), (8, 3574565), (10, 2859652), (19, 1505080), (20, 1429826), (38, 752540), (40, 714913), (76, 376270), (95, 301016), (152, 188135), (190, 150508), (191, 149720), (197, 145160), (380, 75254), (382, 74860), (394, 72580), (760, 37627), (764, 37430), (788, 36290), (955, 29944), (985, 29032), (1528, 18715), (1576, 18145), (1910, 14972), (1970, 14516), (3629, 7880), (3743, 7640), (3820, 7486), (3940, 7258)]