30838280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1$

素因数の和:774

約数の個数: 64

約数和(自身を含む): 76507200

約数和(自身を除く): 45668920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 218, 220, 436, 440, 545, 643, 872, 1090, 1199, 1286, 2180, 2398, 2572, 3215, 4360, 4796, 5144, 5995, 6430, 7073, 9592, 11990, 12860, 14146, 23980, 25720, 28292, 35365, 47960, 56584, 70087, 70730, 140174, 141460, 280348, 282920, 350435, 560696, 700870, 770957, 1401740, 1541914, 2803480, 3083828, 3854785, 6167656, 7709570, 15419140, 30838280]

約数ペア:

[(1, 30838280), (2, 15419140), (4, 7709570), (5, 6167656), (8, 3854785), (10, 3083828), (11, 2803480), (20, 1541914), (22, 1401740), (40, 770957), (44, 700870), (55, 560696), (88, 350435), (109, 282920), (110, 280348), (218, 141460), (220, 140174), (436, 70730), (440, 70087), (545, 56584), (643, 47960), (872, 35365), (1090, 28292), (1199, 25720), (1286, 23980), (2180, 14146), (2398, 12860), (2572, 11990), (3215, 9592), (4360, 7073), (4796, 6430), (5144, 5995)]