289201900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{827}}^1$

素因数の和:1123

約数の個数: 72

約数和(自身を含む): 679175280

約数和(自身を除く): 389973380

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 269, 325, 538, 650, 827, 1076, 1300, 1345, 1654, 2690, 3308, 3497, 4135, 5380, 6725, 6994, 8270, 10751, 13450, 13988, 16540, 17485, 20675, 21502, 26900, 34970, 41350, 43004, 53755, 69940, 82700, 87425, 107510, 174850, 215020, 222463, 268775, 349700, 444926, 537550, 889852, 1075100, 1112315, 2224630, 2892019, 4449260, 5561575, 5784038, 11123150, 11568076, 14460095, 22246300, 28920190, 57840380, 72300475, 144600950, 289201900]

約数ペア:

[(1, 289201900), (2, 144600950), (4, 72300475), (5, 57840380), (10, 28920190), (13, 22246300), (20, 14460095), (25, 11568076), (26, 11123150), (50, 5784038), (52, 5561575), (65, 4449260), (100, 2892019), (130, 2224630), (260, 1112315), (269, 1075100), (325, 889852), (538, 537550), (650, 444926), (827, 349700), (1076, 268775), (1300, 222463), (1345, 215020), (1654, 174850), (2690, 107510), (3308, 87425), (3497, 82700), (4135, 69940), (5380, 53755), (6725, 43004), (6994, 41350), (8270, 34970), (10751, 26900), (13450, 21502), (13988, 20675), (16540, 17485)]