325372280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{1021}}^1$

素因数の和:1320

約数の個数: 64

約数和(自身を含む): 759386880

約数和(自身を除く): 434014600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 257, 310, 514, 620, 1021, 1028, 1240, 1285, 2042, 2056, 2570, 4084, 5105, 5140, 7967, 8168, 10210, 10280, 15934, 20420, 31651, 31868, 39835, 40840, 63302, 63736, 79670, 126604, 158255, 159340, 253208, 262397, 316510, 318680, 524794, 633020, 1049588, 1266040, 1311985, 2099176, 2623970, 5247940, 8134307, 10495880, 16268614, 32537228, 40671535, 65074456, 81343070, 162686140, 325372280]

約数ペア:

[(1, 325372280), (2, 162686140), (4, 81343070), (5, 65074456), (8, 40671535), (10, 32537228), (20, 16268614), (31, 10495880), (40, 8134307), (62, 5247940), (124, 2623970), (155, 2099176), (248, 1311985), (257, 1266040), (310, 1049588), (514, 633020), (620, 524794), (1021, 318680), (1028, 316510), (1240, 262397), (1285, 253208), (2042, 159340), (2056, 158255), (2570, 126604), (4084, 79670), (5105, 63736), (5140, 63302), (7967, 40840), (8168, 39835), (10210, 31868), (10280, 31651), (15934, 20420)]