20145940925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1\times {\mathrm{4969}}^1$

素因数の和:5654

約数の個数: 48

約数和(自身を含む): 28486926720

約数和(自身を除く): 8340985795

約数列:

[1, 5, 11, 23, 25, 55, 115, 253, 275, 575, 641, 1265, 3205, 4969, 6325, 7051, 14743, 16025, 24845, 35255, 54659, 73715, 114287, 124225, 162173, 176275, 273295, 368575, 571435, 810865, 1257157, 1366475, 2857175, 3185129, 4054325, 6285785, 15925645, 31428925, 35036419, 73257967, 79628225, 175182095, 366289835, 805837637, 875910475, 1831449175, 4029188185, 20145940925]

約数ペア:

[(1, 20145940925), (5, 4029188185), (11, 1831449175), (23, 875910475), (25, 805837637), (55, 366289835), (115, 175182095), (253, 79628225), (275, 73257967), (575, 35036419), (641, 31428925), (1265, 15925645), (3205, 6285785), (4969, 4054325), (6325, 3185129), (7051, 2857175), (14743, 1366475), (16025, 1257157), (24845, 810865), (35255, 571435), (54659, 368575), (73715, 273295), (114287, 176275), (124225, 162173)]