249989425

素因数分解:

$5^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1$

素因数の和:311

約数の個数: 72

約数和(自身を含む): 386760960

約数和(自身を除く): 136771535

約数列:

[1, 5, 7, 25, 29, 31, 35, 49, 145, 155, 175, 203, 217, 227, 245, 725, 775, 899, 1015, 1085, 1135, 1225, 1421, 1519, 1589, 4495, 5075, 5425, 5675, 6293, 6583, 7037, 7105, 7595, 7945, 11123, 22475, 31465, 32915, 35185, 35525, 37975, 39725, 44051, 46081, 49259, 55615, 157325, 164575, 175925, 204073, 220255, 230405, 246295, 278075, 322567, 344813, 1020365, 1101275, 1152025, 1231475, 1428511, 1612835, 1724065, 5101825, 7142555, 8064175, 8620325, 9999577, 35712775, 49997885, 249989425]

約数ペア:

[(1, 249989425), (5, 49997885), (7, 35712775), (25, 9999577), (29, 8620325), (31, 8064175), (35, 7142555), (49, 5101825), (145, 1724065), (155, 1612835), (175, 1428511), (203, 1231475), (217, 1152025), (227, 1101275), (245, 1020365), (725, 344813), (775, 322567), (899, 278075), (1015, 246295), (1085, 230405), (1135, 220255), (1225, 204073), (1421, 175925), (1519, 164575), (1589, 157325), (4495, 55615), (5075, 49259), (5425, 46081), (5675, 44051), (6293, 39725), (6583, 37975), (7037, 35525), (7105, 35185), (7595, 32915), (7945, 31465), (11123, 22475)]