205780380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263821}}^1$

素因数の和:263846

約数の個数: 48

約数和(自身を含む): 620509344

約数和(自身を除く): 414728964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 263821, 527642, 791463, 1055284, 1319105, 1582926, 2638210, 3165852, 3429673, 3957315, 5276420, 6859346, 7914630, 10289019, 13718692, 15829260, 17148365, 20578038, 34296730, 41156076, 51445095, 68593460, 102890190, 205780380]

約数ペア:

[(1, 205780380), (2, 102890190), (3, 68593460), (4, 51445095), (5, 41156076), (6, 34296730), (10, 20578038), (12, 17148365), (13, 15829260), (15, 13718692), (20, 10289019), (26, 7914630), (30, 6859346), (39, 5276420), (52, 3957315), (60, 3429673), (65, 3165852), (78, 2638210), (130, 1582926), (156, 1319105), (195, 1055284), (260, 791463), (390, 527642), (780, 263821)]