2009649920

素因数分解:

$2^8\times 5^1\times {\mathrm{977}}^1\times {\mathrm{1607}}^1$

素因数の和:2605

約数の個数: 72

約数和(自身を含む): 4821665184

約数和(自身を除く): 2812015264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 977, 1280, 1607, 1954, 3214, 3908, 4885, 6428, 7816, 8035, 9770, 12856, 15632, 16070, 19540, 25712, 31264, 32140, 39080, 51424, 62528, 64280, 78160, 102848, 125056, 128560, 156320, 205696, 250112, 257120, 312640, 411392, 514240, 625280, 1028480, 1250560, 1570039, 2056960, 3140078, 6280156, 7850195, 12560312, 15700390, 25120624, 31400780, 50241248, 62801560, 100482496, 125603120, 200964992, 251206240, 401929984, 502412480, 1004824960, 2009649920]

約数ペア:

[(1, 2009649920), (2, 1004824960), (4, 502412480), (5, 401929984), (8, 251206240), (10, 200964992), (16, 125603120), (20, 100482496), (32, 62801560), (40, 50241248), (64, 31400780), (80, 25120624), (128, 15700390), (160, 12560312), (256, 7850195), (320, 6280156), (640, 3140078), (977, 2056960), (1280, 1570039), (1607, 1250560), (1954, 1028480), (3214, 625280), (3908, 514240), (4885, 411392), (6428, 312640), (7816, 257120), (8035, 250112), (9770, 205696), (12856, 156320), (15632, 128560), (16070, 125056), (19540, 102848), (25712, 78160), (31264, 64280), (32140, 62528), (39080, 51424)]