20004796

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1213}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 43509760

約数和(自身を除く): 23504964

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 62, 76, 124, 133, 217, 266, 434, 532, 589, 868, 1178, 1213, 2356, 2426, 4123, 4852, 8246, 8491, 16492, 16982, 23047, 33964, 37603, 46094, 75206, 92188, 150412, 161329, 263221, 322658, 526442, 645316, 714457, 1052884, 1428914, 2857828, 5001199, 10002398, 20004796]

約数ペア:

[(1, 20004796), (2, 10002398), (4, 5001199), (7, 2857828), (14, 1428914), (19, 1052884), (28, 714457), (31, 645316), (38, 526442), (62, 322658), (76, 263221), (124, 161329), (133, 150412), (217, 92188), (266, 75206), (434, 46094), (532, 37603), (589, 33964), (868, 23047), (1178, 16982), (1213, 16492), (2356, 8491), (2426, 8246), (4123, 4852)]