20178018185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1583}}^1\times {\mathrm{4783}}^1$

素因数の和:6425

約数の個数: 32

約数和(自身を含む): 26734675968

約数和(自身を除く): 6556657783

約数列:

[1, 5, 13, 41, 65, 205, 533, 1583, 2665, 4783, 7915, 20579, 23915, 62179, 64903, 102895, 196103, 310895, 324515, 843739, 980515, 2549339, 4218695, 7571489, 12746695, 37857445, 98429357, 310431049, 492146785, 1552155245, 4035603637, 20178018185]

約数ペア:

[(1, 20178018185), (5, 4035603637), (13, 1552155245), (41, 492146785), (65, 310431049), (205, 98429357), (533, 37857445), (1583, 12746695), (2665, 7571489), (4783, 4218695), (7915, 2549339), (20579, 980515), (23915, 843739), (62179, 324515), (64903, 310895), (102895, 196103)]