71397725

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 108028800

約数和(自身を除く): 36631075

約数列:

[1, 5, 7, 19, 25, 35, 95, 109, 133, 175, 197, 475, 545, 665, 763, 985, 1379, 2071, 2725, 3325, 3743, 3815, 4925, 6895, 10355, 14497, 18715, 19075, 21473, 26201, 34475, 51775, 72485, 93575, 107365, 131005, 150311, 362425, 407987, 536825, 655025, 751555, 2039935, 2855909, 3757775, 10199675, 14279545, 71397725]

約数ペア:

[(1, 71397725), (5, 14279545), (7, 10199675), (19, 3757775), (25, 2855909), (35, 2039935), (95, 751555), (109, 655025), (133, 536825), (175, 407987), (197, 362425), (475, 150311), (545, 131005), (665, 107365), (763, 93575), (985, 72485), (1379, 51775), (2071, 34475), (2725, 26201), (3325, 21473), (3743, 19075), (3815, 18715), (4925, 14497), (6895, 10355)]