9981040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:250

約数の個数: 80

約数和(自身を含む): 25310880

約数和(自身を除く): 15329840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 41, 68, 80, 82, 85, 136, 164, 170, 179, 205, 272, 328, 340, 358, 410, 656, 680, 697, 716, 820, 895, 1360, 1394, 1432, 1640, 1790, 2788, 2864, 3043, 3280, 3485, 3580, 5576, 6086, 6970, 7160, 7339, 11152, 12172, 13940, 14320, 14678, 15215, 24344, 27880, 29356, 30430, 36695, 48688, 55760, 58712, 60860, 73390, 117424, 121720, 124763, 146780, 243440, 249526, 293560, 499052, 587120, 623815, 998104, 1247630, 1996208, 2495260, 4990520, 9981040]

約数ペア:

[(1, 9981040), (2, 4990520), (4, 2495260), (5, 1996208), (8, 1247630), (10, 998104), (16, 623815), (17, 587120), (20, 499052), (34, 293560), (40, 249526), (41, 243440), (68, 146780), (80, 124763), (82, 121720), (85, 117424), (136, 73390), (164, 60860), (170, 58712), (179, 55760), (205, 48688), (272, 36695), (328, 30430), (340, 29356), (358, 27880), (410, 24344), (656, 15215), (680, 14678), (697, 14320), (716, 13940), (820, 12172), (895, 11152), (1360, 7339), (1394, 7160), (1432, 6970), (1640, 6086), (1790, 5576), (2788, 3580), (2864, 3485), (3043, 3280)]