2809368925

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 4037241600

約数和(自身を除く): 1227872675

約数列:

[1, 5, 11, 23, 25, 55, 115, 121, 149, 253, 271, 275, 575, 605, 745, 1265, 1355, 1639, 2783, 2981, 3025, 3427, 3725, 6233, 6325, 6775, 8195, 13915, 14905, 17135, 18029, 31165, 32791, 37697, 40379, 40975, 68563, 69575, 74525, 85675, 90145, 155825, 163955, 188485, 201895, 342815, 414667, 444169, 450725, 754193, 819775, 928717, 942425, 1009475, 1714075, 2073335, 2220845, 3770965, 4643585, 4885859, 10215887, 10366675, 11104225, 18854825, 23217925, 24429295, 51079435, 112374757, 122146475, 255397175, 561873785, 2809368925]

約数ペア:

[(1, 2809368925), (5, 561873785), (11, 255397175), (23, 122146475), (25, 112374757), (55, 51079435), (115, 24429295), (121, 23217925), (149, 18854825), (253, 11104225), (271, 10366675), (275, 10215887), (575, 4885859), (605, 4643585), (745, 3770965), (1265, 2220845), (1355, 2073335), (1639, 1714075), (2783, 1009475), (2981, 942425), (3025, 928717), (3427, 819775), (3725, 754193), (6233, 450725), (6325, 444169), (6775, 414667), (8195, 342815), (13915, 201895), (14905, 188485), (17135, 163955), (18029, 155825), (31165, 90145), (32791, 85675), (37697, 74525), (40379, 69575), (40975, 68563)]