261182320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6389}}^1$

素因数の和:6482

約数の個数: 80

約数和(自身を含む): 703615680

約数和(自身を除く): 442433360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 73, 80, 112, 140, 146, 280, 292, 365, 511, 560, 584, 730, 1022, 1168, 1460, 2044, 2555, 2920, 4088, 5110, 5840, 6389, 8176, 10220, 12778, 20440, 25556, 31945, 40880, 44723, 51112, 63890, 89446, 102224, 127780, 178892, 223615, 255560, 357784, 447230, 466397, 511120, 715568, 894460, 932794, 1788920, 1865588, 2331985, 3264779, 3577840, 3731176, 4663970, 6529558, 7462352, 9327940, 13059116, 16323895, 18655880, 26118232, 32647790, 37311760, 52236464, 65295580, 130591160, 261182320]

約数ペア:

[(1, 261182320), (2, 130591160), (4, 65295580), (5, 52236464), (7, 37311760), (8, 32647790), (10, 26118232), (14, 18655880), (16, 16323895), (20, 13059116), (28, 9327940), (35, 7462352), (40, 6529558), (56, 4663970), (70, 3731176), (73, 3577840), (80, 3264779), (112, 2331985), (140, 1865588), (146, 1788920), (280, 932794), (292, 894460), (365, 715568), (511, 511120), (560, 466397), (584, 447230), (730, 357784), (1022, 255560), (1168, 223615), (1460, 178892), (2044, 127780), (2555, 102224), (2920, 89446), (4088, 63890), (5110, 51112), (5840, 44723), (6389, 40880), (8176, 31945), (10220, 25556), (12778, 20440)]