1021239400

素因数分解:

$2^3\times 5^2\times {\mathrm{89}}^1\times {\mathrm{57373}}^1$

素因数の和:57478

約数の個数: 48

約数和(自身を含む): 2401101900

約数和(自身を除く): 1379862500

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 178, 200, 356, 445, 712, 890, 1780, 2225, 3560, 4450, 8900, 17800, 57373, 114746, 229492, 286865, 458984, 573730, 1147460, 1434325, 2294920, 2868650, 5106197, 5737300, 10212394, 11474600, 20424788, 25530985, 40849576, 51061970, 102123940, 127654925, 204247880, 255309850, 510619700, 1021239400]

約数ペア:

[(1, 1021239400), (2, 510619700), (4, 255309850), (5, 204247880), (8, 127654925), (10, 102123940), (20, 51061970), (25, 40849576), (40, 25530985), (50, 20424788), (89, 11474600), (100, 10212394), (178, 5737300), (200, 5106197), (356, 2868650), (445, 2294920), (712, 1434325), (890, 1147460), (1780, 573730), (2225, 458984), (3560, 286865), (4450, 229492), (8900, 114746), (17800, 57373)]