2831920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:422

約数の個数: 80

約数和(自身を含む): 8124480

約数和(自身を除く): 5292560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 389, 455, 520, 560, 728, 778, 910, 1040, 1456, 1556, 1820, 1945, 2723, 3112, 3640, 3890, 5057, 5446, 6224, 7280, 7780, 10114, 10892, 13615, 15560, 20228, 21784, 25285, 27230, 31120, 35399, 40456, 43568, 50570, 54460, 70798, 80912, 101140, 108920, 141596, 176995, 202280, 217840, 283192, 353990, 404560, 566384, 707980, 1415960, 2831920]

約数ペア:

[(1, 2831920), (2, 1415960), (4, 707980), (5, 566384), (7, 404560), (8, 353990), (10, 283192), (13, 217840), (14, 202280), (16, 176995), (20, 141596), (26, 108920), (28, 101140), (35, 80912), (40, 70798), (52, 54460), (56, 50570), (65, 43568), (70, 40456), (80, 35399), (91, 31120), (104, 27230), (112, 25285), (130, 21784), (140, 20228), (182, 15560), (208, 13615), (260, 10892), (280, 10114), (364, 7780), (389, 7280), (455, 6224), (520, 5446), (560, 5057), (728, 3890), (778, 3640), (910, 3112), (1040, 2723), (1456, 1945), (1556, 1820)]