4990520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 12247200

約数和(自身を除く): 7256680

約数列:

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

約数ペア:

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