20104028606780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4877}}^1\times {\mathrm{1890923}}^1$

素因数の和:1895918

約数の個数: 48

約数和(自身を含む): 42614543996640

約数和(自身を除く): 22510515389860

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 4877, 9754, 19508, 24385, 48770, 97540, 531593, 1063186, 1890923, 2126372, 2657965, 3781846, 5315930, 7563692, 9454615, 10631860, 18909230, 37818460, 206110607, 412221214, 824442428, 1030553035, 2061106070, 4122212140, 9222031471, 18444062942, 36888125884, 46110157355, 92220314710, 184440629420, 1005201430339, 2010402860678, 4020805721356, 5026007151695, 10052014303390, 20104028606780]

約数ペア:

[(1, 20104028606780), (2, 10052014303390), (4, 5026007151695), (5, 4020805721356), (10, 2010402860678), (20, 1005201430339), (109, 184440629420), (218, 92220314710), (436, 46110157355), (545, 36888125884), (1090, 18444062942), (2180, 9222031471), (4877, 4122212140), (9754, 2061106070), (19508, 1030553035), (24385, 824442428), (48770, 412221214), (97540, 206110607), (531593, 37818460), (1063186, 18909230), (1890923, 10631860), (2126372, 9454615), (2657965, 7563692), (3781846, 5315930)]