2009505280

素因数分解:

$2^9\times 5^1\times {\mathrm{103}}^1\times {\mathrm{7621}}^1$

素因数の和:7747

約数の個数: 80

約数和(自身を含む): 4865518944

約数和(自身を除く): 2856013664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 103, 128, 160, 206, 256, 320, 412, 512, 515, 640, 824, 1030, 1280, 1648, 2060, 2560, 3296, 4120, 6592, 7621, 8240, 13184, 15242, 16480, 26368, 30484, 32960, 38105, 52736, 60968, 65920, 76210, 121936, 131840, 152420, 243872, 263680, 304840, 487744, 609680, 784963, 975488, 1219360, 1569926, 1950976, 2438720, 3139852, 3901952, 3924815, 4877440, 6279704, 7849630, 9754880, 12559408, 15699260, 19509760, 25118816, 31398520, 50237632, 62797040, 100475264, 125594080, 200950528, 251188160, 401901056, 502376320, 1004752640, 2009505280]

約数ペア:

[(1, 2009505280), (2, 1004752640), (4, 502376320), (5, 401901056), (8, 251188160), (10, 200950528), (16, 125594080), (20, 100475264), (32, 62797040), (40, 50237632), (64, 31398520), (80, 25118816), (103, 19509760), (128, 15699260), (160, 12559408), (206, 9754880), (256, 7849630), (320, 6279704), (412, 4877440), (512, 3924815), (515, 3901952), (640, 3139852), (824, 2438720), (1030, 1950976), (1280, 1569926), (1648, 1219360), (2060, 975488), (2560, 784963), (3296, 609680), (4120, 487744), (6592, 304840), (7621, 263680), (8240, 243872), (13184, 152420), (15242, 131840), (16480, 121936), (26368, 76210), (30484, 65920), (32960, 60968), (38105, 52736)]