51028775

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 77376000

約数和(自身を除く): 26347225

約数列:

[1, 5, 7, 19, 25, 35, 95, 103, 133, 149, 175, 475, 515, 665, 721, 745, 1043, 1957, 2575, 2831, 3325, 3605, 3725, 5215, 9785, 13699, 14155, 15347, 18025, 19817, 26075, 48925, 68495, 70775, 76735, 99085, 107429, 291593, 342475, 383675, 495425, 537145, 1457965, 2041151, 2685725, 7289825, 10205755, 51028775]

約数ペア:

[(1, 51028775), (5, 10205755), (7, 7289825), (19, 2685725), (25, 2041151), (35, 1457965), (95, 537145), (103, 495425), (133, 383675), (149, 342475), (175, 291593), (475, 107429), (515, 99085), (665, 76735), (721, 70775), (745, 68495), (1043, 48925), (1957, 26075), (2575, 19817), (2831, 18025), (3325, 15347), (3605, 14155), (3725, 13699), (5215, 9785)]