253450730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1031}}^1$

素因数の和:1143

約数の個数: 64

約数和(自身を含む): 515966976

約数和(自身を除く): 262516246

約数列:

[1, 2, 5, 10, 13, 26, 31, 61, 62, 65, 122, 130, 155, 305, 310, 403, 610, 793, 806, 1031, 1586, 1891, 2015, 2062, 3782, 3965, 4030, 5155, 7930, 9455, 10310, 13403, 18910, 24583, 26806, 31961, 49166, 62891, 63922, 67015, 122915, 125782, 134030, 159805, 245830, 314455, 319610, 415493, 628910, 817583, 830986, 1635166, 1949621, 2077465, 3899242, 4087915, 4154930, 8175830, 9748105, 19496210, 25345073, 50690146, 126725365, 253450730]

約数ペア:

[(1, 253450730), (2, 126725365), (5, 50690146), (10, 25345073), (13, 19496210), (26, 9748105), (31, 8175830), (61, 4154930), (62, 4087915), (65, 3899242), (122, 2077465), (130, 1949621), (155, 1635166), (305, 830986), (310, 817583), (403, 628910), (610, 415493), (793, 319610), (806, 314455), (1031, 245830), (1586, 159805), (1891, 134030), (2015, 125782), (2062, 122915), (3782, 67015), (3965, 63922), (4030, 62891), (5155, 49166), (7930, 31961), (9455, 26806), (10310, 24583), (13403, 18910)]