81262636

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^3\times {\mathrm{1321}}^1$

素因数の和:1371

約数の個数: 48

約数和(自身を含む): 176196160

約数和(自身を除く): 94933524

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 169, 182, 338, 364, 676, 1183, 1321, 2197, 2366, 2642, 4394, 4732, 5284, 8788, 9247, 15379, 17173, 18494, 30758, 34346, 36988, 61516, 68692, 120211, 223249, 240422, 446498, 480844, 892996, 1562743, 2902237, 3125486, 5804474, 6250972, 11608948, 20315659, 40631318, 81262636]

約数ペア:

[(1, 81262636), (2, 40631318), (4, 20315659), (7, 11608948), (13, 6250972), (14, 5804474), (26, 3125486), (28, 2902237), (52, 1562743), (91, 892996), (169, 480844), (182, 446498), (338, 240422), (364, 223249), (676, 120211), (1183, 68692), (1321, 61516), (2197, 36988), (2366, 34346), (2642, 30758), (4394, 18494), (4732, 17173), (5284, 15379), (8788, 9247)]