28490080

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:200

約数の個数: 96

約数和(自身を含む): 71251488

約数和(自身を除く): 42761408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 43, 80, 82, 86, 101, 160, 164, 172, 202, 205, 215, 328, 344, 404, 410, 430, 505, 656, 688, 808, 820, 860, 1010, 1312, 1376, 1616, 1640, 1720, 1763, 2020, 3232, 3280, 3440, 3526, 4040, 4141, 4343, 6560, 6880, 7052, 8080, 8282, 8686, 8815, 14104, 16160, 16564, 17372, 17630, 20705, 21715, 28208, 33128, 34744, 35260, 41410, 43430, 56416, 66256, 69488, 70520, 82820, 86860, 132512, 138976, 141040, 165640, 173720, 178063, 282080, 331280, 347440, 356126, 662560, 694880, 712252, 890315, 1424504, 1780630, 2849008, 3561260, 5698016, 7122520, 14245040, 28490080]

約数ペア:

[(1, 28490080), (2, 14245040), (4, 7122520), (5, 5698016), (8, 3561260), (10, 2849008), (16, 1780630), (20, 1424504), (32, 890315), (40, 712252), (41, 694880), (43, 662560), (80, 356126), (82, 347440), (86, 331280), (101, 282080), (160, 178063), (164, 173720), (172, 165640), (202, 141040), (205, 138976), (215, 132512), (328, 86860), (344, 82820), (404, 70520), (410, 69488), (430, 66256), (505, 56416), (656, 43430), (688, 41410), (808, 35260), (820, 34744), (860, 33128), (1010, 28208), (1312, 21715), (1376, 20705), (1616, 17630), (1640, 17372), (1720, 16564), (1763, 16160), (2020, 14104), (3232, 8815), (3280, 8686), (3440, 8282), (3526, 8080), (4040, 7052), (4141, 6880), (4343, 6560)]