19950300

素因数分解:

$2^2\times 3^5\times 5^2\times {\mathrm{821}}^1$

素因数の和:850

約数の個数: 108

約数和(自身を含む): 64928136

約数和(自身を除く): 44977836

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 243, 270, 300, 324, 405, 450, 486, 540, 675, 810, 821, 900, 972, 1215, 1350, 1620, 1642, 2025, 2430, 2463, 2700, 3284, 4050, 4105, 4860, 4926, 6075, 7389, 8100, 8210, 9852, 12150, 12315, 14778, 16420, 20525, 22167, 24300, 24630, 29556, 36945, 41050, 44334, 49260, 61575, 66501, 73890, 82100, 88668, 110835, 123150, 133002, 147780, 184725, 199503, 221670, 246300, 266004, 332505, 369450, 399006, 443340, 554175, 665010, 738900, 798012, 997515, 1108350, 1330020, 1662525, 1995030, 2216700, 3325050, 3990060, 4987575, 6650100, 9975150, 19950300]

約数ペア:

[(1, 19950300), (2, 9975150), (3, 6650100), (4, 4987575), (5, 3990060), (6, 3325050), (9, 2216700), (10, 1995030), (12, 1662525), (15, 1330020), (18, 1108350), (20, 997515), (25, 798012), (27, 738900), (30, 665010), (36, 554175), (45, 443340), (50, 399006), (54, 369450), (60, 332505), (75, 266004), (81, 246300), (90, 221670), (100, 199503), (108, 184725), (135, 147780), (150, 133002), (162, 123150), (180, 110835), (225, 88668), (243, 82100), (270, 73890), (300, 66501), (324, 61575), (405, 49260), (450, 44334), (486, 41050), (540, 36945), (675, 29556), (810, 24630), (821, 24300), (900, 22167), (972, 20525), (1215, 16420), (1350, 14778), (1620, 12315), (1642, 12150), (2025, 9852), (2430, 8210), (2463, 8100), (2700, 7389), (3284, 6075), (4050, 4926), (4105, 4860)]