51981195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:484

約数の個数: 64

約数和(自身を含む): 100869120

約数和(自身を除く): 48887925

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 43, 87, 105, 129, 145, 203, 215, 301, 397, 435, 609, 645, 903, 1015, 1191, 1247, 1505, 1985, 2779, 3045, 3741, 4515, 5955, 6235, 8337, 8729, 11513, 13895, 17071, 18705, 26187, 34539, 41685, 43645, 51213, 57565, 80591, 85355, 119497, 130935, 172695, 241773, 256065, 358491, 402955, 495059, 597485, 1208865, 1485177, 1792455, 2475295, 3465413, 7425885, 10396239, 17327065, 51981195]

約数ペア:

[(1, 51981195), (3, 17327065), (5, 10396239), (7, 7425885), (15, 3465413), (21, 2475295), (29, 1792455), (35, 1485177), (43, 1208865), (87, 597485), (105, 495059), (129, 402955), (145, 358491), (203, 256065), (215, 241773), (301, 172695), (397, 130935), (435, 119497), (609, 85355), (645, 80591), (903, 57565), (1015, 51213), (1191, 43645), (1247, 41685), (1505, 34539), (1985, 26187), (2779, 18705), (3045, 17071), (3741, 13895), (4515, 11513), (5955, 8729), (6235, 8337)]