2100789725

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{853}}^1$

素因数の和:1014

約数の個数: 48

約数和(自身を含む): 2795654400

約数和(自身を除く): 694864675

約数列:

[1, 5, 25, 29, 43, 79, 145, 215, 395, 725, 853, 1075, 1247, 1975, 2291, 3397, 4265, 6235, 11455, 16985, 21325, 24737, 31175, 36679, 57275, 67387, 84925, 98513, 123685, 183395, 336935, 492565, 618425, 916975, 1063691, 1684675, 1954223, 2462825, 2897641, 5318455, 9771115, 14488205, 26592275, 48855575, 72441025, 84031589, 420157945, 2100789725]

約数ペア:

[(1, 2100789725), (5, 420157945), (25, 84031589), (29, 72441025), (43, 48855575), (79, 26592275), (145, 14488205), (215, 9771115), (395, 5318455), (725, 2897641), (853, 2462825), (1075, 1954223), (1247, 1684675), (1975, 1063691), (2291, 916975), (3397, 618425), (4265, 492565), (6235, 336935), (11455, 183395), (16985, 123685), (21325, 98513), (24737, 84925), (31175, 67387), (36679, 57275)]