20040976

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:491

約数の個数: 40

約数和(自身を含む): 40405400

約数和(自身を除く): 20364424

約数列:

[1, 2, 4, 8, 16, 37, 74, 97, 148, 194, 296, 349, 388, 592, 698, 776, 1396, 1552, 2792, 3589, 5584, 7178, 12913, 14356, 25826, 28712, 33853, 51652, 57424, 67706, 103304, 135412, 206608, 270824, 541648, 1252561, 2505122, 5010244, 10020488, 20040976]

約数ペア:

[(1, 20040976), (2, 10020488), (4, 5010244), (8, 2505122), (16, 1252561), (37, 541648), (74, 270824), (97, 206608), (148, 135412), (194, 103304), (296, 67706), (349, 57424), (388, 51652), (592, 33853), (698, 28712), (776, 25826), (1396, 14356), (1552, 12913), (2792, 7178), (3589, 5584)]