290427920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191071}}^1$

素因数の和:191103

約数の個数: 40

約数和(自身を含む): 710787840

約数和(自身を除く): 420359920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 191071, 382142, 764284, 955355, 1528568, 1910710, 3057136, 3630349, 3821420, 7260698, 7642840, 14521396, 15285680, 18151745, 29042792, 36303490, 58085584, 72606980, 145213960, 290427920]

約数ペア:

[(1, 290427920), (2, 145213960), (4, 72606980), (5, 58085584), (8, 36303490), (10, 29042792), (16, 18151745), (19, 15285680), (20, 14521396), (38, 7642840), (40, 7260698), (76, 3821420), (80, 3630349), (95, 3057136), (152, 1910710), (190, 1528568), (304, 955355), (380, 764284), (760, 382142), (1520, 191071)]