1608907840

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{647}}^1$

素因数の和:1092

約数の個数: 112

約数和(自身を含む): 4048963200

約数和(自身を除く): 2440055360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 409, 608, 647, 760, 818, 1216, 1294, 1520, 1636, 2045, 2588, 3040, 3235, 3272, 4090, 5176, 6080, 6470, 6544, 7771, 8180, 10352, 12293, 12940, 13088, 15542, 16360, 20704, 24586, 25880, 26176, 31084, 32720, 38855, 41408, 49172, 51760, 61465, 62168, 65440, 77710, 98344, 103520, 122930, 124336, 130880, 155420, 196688, 207040, 245860, 248672, 264623, 310840, 393376, 491720, 497344, 529246, 621680, 786752, 983440, 1058492, 1243360, 1323115, 1966880, 2116984, 2486720, 2646230, 3933760, 4233968, 5027837, 5292460, 8467936, 10055674, 10584920, 16935872, 20111348, 21169840, 25139185, 40222696, 42339680, 50278370, 80445392, 84679360, 100556740, 160890784, 201113480, 321781568, 402226960, 804453920, 1608907840]

約数ペア:

[(1, 1608907840), (2, 804453920), (4, 402226960), (5, 321781568), (8, 201113480), (10, 160890784), (16, 100556740), (19, 84679360), (20, 80445392), (32, 50278370), (38, 42339680), (40, 40222696), (64, 25139185), (76, 21169840), (80, 20111348), (95, 16935872), (152, 10584920), (160, 10055674), (190, 8467936), (304, 5292460), (320, 5027837), (380, 4233968), (409, 3933760), (608, 2646230), (647, 2486720), (760, 2116984), (818, 1966880), (1216, 1323115), (1294, 1243360), (1520, 1058492), (1636, 983440), (2045, 786752), (2588, 621680), (3040, 529246), (3235, 497344), (3272, 491720), (4090, 393376), (5176, 310840), (6080, 264623), (6470, 248672), (6544, 245860), (7771, 207040), (8180, 196688), (10352, 155420), (12293, 130880), (12940, 124336), (13088, 122930), (15542, 103520), (16360, 98344), (20704, 77710), (24586, 65440), (25880, 62168), (26176, 61465), (31084, 51760), (32720, 49172), (38855, 41408)]