81677830

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{463}}^1$

素因数の和:565

約数の個数: 64

約数和(自身を含む): 168376320

約数和(自身を除く): 86698490

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 59, 65, 115, 118, 130, 230, 295, 299, 463, 590, 598, 767, 926, 1357, 1495, 1534, 2315, 2714, 2990, 3835, 4630, 6019, 6785, 7670, 10649, 12038, 13570, 17641, 21298, 27317, 30095, 35282, 53245, 54634, 60190, 88205, 106490, 136585, 138437, 176410, 273170, 276874, 355121, 628291, 692185, 710242, 1256582, 1384370, 1775605, 3141455, 3551210, 6282910, 8167783, 16335566, 40838915, 81677830]

約数ペア:

[(1, 81677830), (2, 40838915), (5, 16335566), (10, 8167783), (13, 6282910), (23, 3551210), (26, 3141455), (46, 1775605), (59, 1384370), (65, 1256582), (115, 710242), (118, 692185), (130, 628291), (230, 355121), (295, 276874), (299, 273170), (463, 176410), (590, 138437), (598, 136585), (767, 106490), (926, 88205), (1357, 60190), (1495, 54634), (1534, 53245), (2315, 35282), (2714, 30095), (2990, 27317), (3835, 21298), (4630, 17641), (6019, 13570), (6785, 12038), (7670, 10649)]