161791175

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{197}}^1$

素因数の和:265

約数の個数: 72

約数和(自身を含む): 261920736

約数和(自身を除く): 100129561

約数列:

[1, 5, 7, 13, 19, 25, 35, 65, 91, 95, 133, 175, 197, 247, 325, 361, 455, 475, 665, 985, 1235, 1379, 1729, 1805, 2275, 2527, 2561, 3325, 3743, 4693, 4925, 6175, 6895, 8645, 9025, 12635, 12805, 17927, 18715, 23465, 26201, 32851, 34475, 43225, 48659, 63175, 64025, 71117, 89635, 93575, 117325, 131005, 164255, 243295, 340613, 355585, 448175, 497819, 655025, 821275, 924521, 1216475, 1703065, 1777925, 2489095, 4622605, 6471647, 8515325, 12445475, 23113025, 32358235, 161791175]

約数ペア:

[(1, 161791175), (5, 32358235), (7, 23113025), (13, 12445475), (19, 8515325), (25, 6471647), (35, 4622605), (65, 2489095), (91, 1777925), (95, 1703065), (133, 1216475), (175, 924521), (197, 821275), (247, 655025), (325, 497819), (361, 448175), (455, 355585), (475, 340613), (665, 243295), (985, 164255), (1235, 131005), (1379, 117325), (1729, 93575), (1805, 89635), (2275, 71117), (2527, 64025), (2561, 63175), (3325, 48659), (3743, 43225), (4693, 34475), (4925, 32851), (6175, 26201), (6895, 23465), (8645, 18715), (9025, 17927), (12635, 12805)]