280297731

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 451526400

約数和(自身を除く): 171228669

約数列:

[1, 3, 7, 21, 29, 59, 87, 177, 203, 269, 413, 609, 807, 841, 1239, 1711, 1883, 2523, 5133, 5649, 5887, 7801, 11977, 15871, 17661, 23403, 35931, 47613, 49619, 54607, 111097, 148857, 163821, 226229, 333291, 347333, 460259, 678687, 1041999, 1380777, 1583603, 3221813, 4750809, 9665439, 13347511, 40042533, 93432577, 280297731]

約数ペア:

[(1, 280297731), (3, 93432577), (7, 40042533), (21, 13347511), (29, 9665439), (59, 4750809), (87, 3221813), (177, 1583603), (203, 1380777), (269, 1041999), (413, 678687), (609, 460259), (807, 347333), (841, 333291), (1239, 226229), (1711, 163821), (1883, 148857), (2523, 111097), (5133, 54607), (5649, 49619), (5887, 47613), (7801, 35931), (11977, 23403), (15871, 17661)]