156720500980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1061}}^1\times {\mathrm{388711}}^1$

素因数の和:389800

約数の個数: 48

約数和(自身を含む): 346762200960

約数和(自身を除く): 190041699980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1061, 2122, 4244, 5305, 10610, 20159, 21220, 40318, 80636, 100795, 201590, 388711, 403180, 777422, 1554844, 1943555, 3887110, 7385509, 7774220, 14771018, 29542036, 36927545, 73855090, 147710180, 412422371, 824844742, 1649689484, 2062111855, 4124223710, 7836025049, 8248447420, 15672050098, 31344100196, 39180125245, 78360250490, 156720500980]

約数ペア:

[(1, 156720500980), (2, 78360250490), (4, 39180125245), (5, 31344100196), (10, 15672050098), (19, 8248447420), (20, 7836025049), (38, 4124223710), (76, 2062111855), (95, 1649689484), (190, 824844742), (380, 412422371), (1061, 147710180), (2122, 73855090), (4244, 36927545), (5305, 29542036), (10610, 14771018), (20159, 7774220), (21220, 7385509), (40318, 3887110), (80636, 1943555), (100795, 1554844), (201590, 777422), (388711, 403180)]