20173949840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4787}}^1\times {\mathrm{4789}}^1$

素因数の和:9600

約数の個数: 80

約数和(自身を含む): 51189848640

約数和(自身を除く): 31015898800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 4787, 4789, 9574, 9578, 19148, 19156, 23935, 23945, 38296, 38312, 47870, 47890, 52657, 52679, 76592, 76624, 95740, 95780, 105314, 105358, 191480, 191560, 210628, 210716, 263285, 263395, 382960, 383120, 421256, 421432, 526570, 526790, 842512, 842864, 1053140, 1053580, 2106280, 2107160, 4212560, 4214320, 22924943, 45849886, 91699772, 114624715, 183399544, 229249430, 252174373, 366799088, 458498860, 504348746, 916997720, 1008697492, 1260871865, 1833995440, 2017394984, 2521743730, 4034789968, 5043487460, 10086974920, 20173949840]

約数ペア:

[(1, 20173949840), (2, 10086974920), (4, 5043487460), (5, 4034789968), (8, 2521743730), (10, 2017394984), (11, 1833995440), (16, 1260871865), (20, 1008697492), (22, 916997720), (40, 504348746), (44, 458498860), (55, 366799088), (80, 252174373), (88, 229249430), (110, 183399544), (176, 114624715), (220, 91699772), (440, 45849886), (880, 22924943), (4787, 4214320), (4789, 4212560), (9574, 2107160), (9578, 2106280), (19148, 1053580), (19156, 1053140), (23935, 842864), (23945, 842512), (38296, 526790), (38312, 526570), (47870, 421432), (47890, 421256), (52657, 383120), (52679, 382960), (76592, 263395), (76624, 263285), (95740, 210716), (95780, 210628), (105314, 191560), (105358, 191480)]