28437990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{709}}^1$

素因数の和:917

約数の個数: 64

約数和(自身を含む): 78520320

約数和(自身を除く): 50082330

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 191, 210, 382, 573, 709, 955, 1146, 1337, 1418, 1910, 2127, 2674, 2865, 3545, 4011, 4254, 4963, 5730, 6685, 7090, 8022, 9926, 10635, 13370, 14889, 20055, 21270, 24815, 29778, 40110, 49630, 74445, 135419, 148890, 270838, 406257, 677095, 812514, 947933, 1354190, 1895866, 2031285, 2843799, 4062570, 4739665, 5687598, 9479330, 14218995, 28437990]

約数ペア:

[(1, 28437990), (2, 14218995), (3, 9479330), (5, 5687598), (6, 4739665), (7, 4062570), (10, 2843799), (14, 2031285), (15, 1895866), (21, 1354190), (30, 947933), (35, 812514), (42, 677095), (70, 406257), (105, 270838), (191, 148890), (210, 135419), (382, 74445), (573, 49630), (709, 40110), (955, 29778), (1146, 24815), (1337, 21270), (1418, 20055), (1910, 14889), (2127, 13370), (2674, 10635), (2865, 9926), (3545, 8022), (4011, 7090), (4254, 6685), (4963, 5730)]