198032725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 284981760

約数和(自身を除く): 86949035

約数列:

[1, 5, 11, 19, 25, 55, 95, 151, 209, 251, 275, 475, 755, 1045, 1255, 1661, 2761, 2869, 3775, 4769, 5225, 6275, 8305, 13805, 14345, 23845, 31559, 37901, 41525, 52459, 69025, 71725, 119225, 157795, 189505, 262295, 416911, 720119, 788975, 947525, 1311475, 2084555, 3600595, 7921309, 10422775, 18002975, 39606545, 198032725]

約数ペア:

[(1, 198032725), (5, 39606545), (11, 18002975), (19, 10422775), (25, 7921309), (55, 3600595), (95, 2084555), (151, 1311475), (209, 947525), (251, 788975), (275, 720119), (475, 416911), (755, 262295), (1045, 189505), (1255, 157795), (1661, 119225), (2761, 71725), (2869, 69025), (3775, 52459), (4769, 41525), (5225, 37901), (6275, 31559), (8305, 23845), (13805, 14345)]