129940000

素因数分解:

$2^5\times 5^4\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:192

約数の個数: 120

約数和(自身を含む): 327691980

約数和(自身を除く): 197751980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 73, 80, 89, 100, 125, 146, 160, 178, 200, 250, 292, 356, 365, 400, 445, 500, 584, 625, 712, 730, 800, 890, 1000, 1168, 1250, 1424, 1460, 1780, 1825, 2000, 2225, 2336, 2500, 2848, 2920, 3560, 3650, 4000, 4450, 5000, 5840, 6497, 7120, 7300, 8900, 9125, 10000, 11125, 11680, 12994, 14240, 14600, 17800, 18250, 20000, 22250, 25988, 29200, 32485, 35600, 36500, 44500, 45625, 51976, 55625, 58400, 64970, 71200, 73000, 89000, 91250, 103952, 111250, 129940, 146000, 162425, 178000, 182500, 207904, 222500, 259880, 292000, 324850, 356000, 365000, 445000, 519760, 649700, 730000, 812125, 890000, 1039520, 1299400, 1460000, 1624250, 1780000, 2598800, 3248500, 4060625, 5197600, 6497000, 8121250, 12994000, 16242500, 25988000, 32485000, 64970000, 129940000]

約数ペア:

[(1, 129940000), (2, 64970000), (4, 32485000), (5, 25988000), (8, 16242500), (10, 12994000), (16, 8121250), (20, 6497000), (25, 5197600), (32, 4060625), (40, 3248500), (50, 2598800), (73, 1780000), (80, 1624250), (89, 1460000), (100, 1299400), (125, 1039520), (146, 890000), (160, 812125), (178, 730000), (200, 649700), (250, 519760), (292, 445000), (356, 365000), (365, 356000), (400, 324850), (445, 292000), (500, 259880), (584, 222500), (625, 207904), (712, 182500), (730, 178000), (800, 162425), (890, 146000), (1000, 129940), (1168, 111250), (1250, 103952), (1424, 91250), (1460, 89000), (1780, 73000), (1825, 71200), (2000, 64970), (2225, 58400), (2336, 55625), (2500, 51976), (2848, 45625), (2920, 44500), (3560, 36500), (3650, 35600), (4000, 32485), (4450, 29200), (5000, 25988), (5840, 22250), (6497, 20000), (7120, 18250), (7300, 17800), (8900, 14600), (9125, 14240), (10000, 12994), (11125, 11680)]