1288996900

素因数分解:

$2^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{179}}^1\times {\mathrm{673}}^1$

素因数の和:973

約数の個数: 72

約数和(自身を含む): 2843255520

約数和(自身を除く): 1554258620

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 107, 179, 214, 358, 428, 535, 673, 716, 895, 1070, 1346, 1790, 2140, 2675, 2692, 3365, 3580, 4475, 5350, 6730, 8950, 10700, 13460, 16825, 17900, 19153, 33650, 38306, 67300, 72011, 76612, 95765, 120467, 144022, 191530, 240934, 288044, 360055, 383060, 478825, 481868, 602335, 720110, 957650, 1204670, 1440220, 1800275, 1915300, 2409340, 3011675, 3600550, 6023350, 7201100, 12046700, 12889969, 25779938, 51559876, 64449845, 128899690, 257799380, 322249225, 644498450, 1288996900]

約数ペア:

[(1, 1288996900), (2, 644498450), (4, 322249225), (5, 257799380), (10, 128899690), (20, 64449845), (25, 51559876), (50, 25779938), (100, 12889969), (107, 12046700), (179, 7201100), (214, 6023350), (358, 3600550), (428, 3011675), (535, 2409340), (673, 1915300), (716, 1800275), (895, 1440220), (1070, 1204670), (1346, 957650), (1790, 720110), (2140, 602335), (2675, 481868), (2692, 478825), (3365, 383060), (3580, 360055), (4475, 288044), (5350, 240934), (6730, 191530), (8950, 144022), (10700, 120467), (13460, 95765), (16825, 76612), (17900, 72011), (19153, 67300), (33650, 38306)]