20128036490

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1\times {\mathrm{1013}}^1$

素因数の和:1415

約数の個数: 64

約数和(自身を含む): 37174505472

約数和(自身を除く): 17046468982

約数列:

[1, 2, 5, 10, 101, 103, 191, 202, 206, 382, 505, 515, 955, 1010, 1013, 1030, 1910, 2026, 5065, 10130, 10403, 19291, 19673, 20806, 38582, 39346, 52015, 96455, 98365, 102313, 104030, 104339, 192910, 193483, 196730, 204626, 208678, 386966, 511565, 521695, 967415, 1023130, 1043390, 1934830, 1986973, 3973946, 9934865, 10538239, 19541783, 19869730, 19928749, 21076478, 39083566, 39857498, 52691195, 97708915, 99643745, 105382390, 195417830, 199287490, 2012803649, 4025607298, 10064018245, 20128036490]

約数ペア:

[(1, 20128036490), (2, 10064018245), (5, 4025607298), (10, 2012803649), (101, 199287490), (103, 195417830), (191, 105382390), (202, 99643745), (206, 97708915), (382, 52691195), (505, 39857498), (515, 39083566), (955, 21076478), (1010, 19928749), (1013, 19869730), (1030, 19541783), (1910, 10538239), (2026, 9934865), (5065, 3973946), (10130, 1986973), (10403, 1934830), (19291, 1043390), (19673, 1023130), (20806, 967415), (38582, 521695), (39346, 511565), (52015, 386966), (96455, 208678), (98365, 204626), (102313, 196730), (104030, 193483), (104339, 192910)]