205304630

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{557}}^1$

素因数の和:665

約数の個数: 64

約数和(自身を含む): 404974080

約数和(自身を除く): 199669450

約数列:

[1, 2, 5, 10, 29, 31, 41, 58, 62, 82, 145, 155, 205, 290, 310, 410, 557, 899, 1114, 1189, 1271, 1798, 2378, 2542, 2785, 4495, 5570, 5945, 6355, 8990, 11890, 12710, 16153, 17267, 22837, 32306, 34534, 36859, 45674, 73718, 80765, 86335, 114185, 161530, 172670, 184295, 228370, 368590, 500743, 662273, 707947, 1001486, 1324546, 1415894, 2503715, 3311365, 3539735, 5007430, 6622730, 7079470, 20530463, 41060926, 102652315, 205304630]

約数ペア:

[(1, 205304630), (2, 102652315), (5, 41060926), (10, 20530463), (29, 7079470), (31, 6622730), (41, 5007430), (58, 3539735), (62, 3311365), (82, 2503715), (145, 1415894), (155, 1324546), (205, 1001486), (290, 707947), (310, 662273), (410, 500743), (557, 368590), (899, 228370), (1114, 184295), (1189, 172670), (1271, 161530), (1798, 114185), (2378, 86335), (2542, 80765), (2785, 73718), (4495, 45674), (5570, 36859), (5945, 34534), (6355, 32306), (8990, 22837), (11890, 17267), (12710, 16153)]