81193216

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{787}}^1$

素因数の和:847

約数の個数: 72

約数和(自身を含む): 180395264

約数和(自身を除く): 99202048

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 256, 403, 416, 496, 787, 806, 832, 992, 1574, 1612, 1664, 1984, 3148, 3224, 3328, 3968, 6296, 6448, 7936, 10231, 12592, 12896, 20462, 24397, 25184, 25792, 40924, 48794, 50368, 51584, 81848, 97588, 100736, 103168, 163696, 195176, 201472, 317161, 327392, 390352, 634322, 654784, 780704, 1268644, 1309568, 1561408, 2537288, 2619136, 3122816, 5074576, 6245632, 10149152, 20298304, 40596608, 81193216]

約数ペア:

[(1, 81193216), (2, 40596608), (4, 20298304), (8, 10149152), (13, 6245632), (16, 5074576), (26, 3122816), (31, 2619136), (32, 2537288), (52, 1561408), (62, 1309568), (64, 1268644), (104, 780704), (124, 654784), (128, 634322), (208, 390352), (248, 327392), (256, 317161), (403, 201472), (416, 195176), (496, 163696), (787, 103168), (806, 100736), (832, 97588), (992, 81848), (1574, 51584), (1612, 50368), (1664, 48794), (1984, 40924), (3148, 25792), (3224, 25184), (3328, 24397), (3968, 20462), (6296, 12896), (6448, 12592), (7936, 10231)]