28016460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{491}}^1$

素因数の和:823

約数の個数: 72

約数和(自身を含む): 85424976

約数和(自身を除く): 57408516

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 317, 491, 634, 951, 982, 1268, 1473, 1585, 1902, 1964, 2455, 2853, 2946, 3170, 3804, 4419, 4755, 4910, 5706, 5892, 6340, 7365, 8838, 9510, 9820, 11412, 14265, 14730, 17676, 19020, 22095, 28530, 29460, 44190, 57060, 88380, 155647, 311294, 466941, 622588, 778235, 933882, 1400823, 1556470, 1867764, 2334705, 2801646, 3112940, 4669410, 5603292, 7004115, 9338820, 14008230, 28016460]

約数ペア:

[(1, 28016460), (2, 14008230), (3, 9338820), (4, 7004115), (5, 5603292), (6, 4669410), (9, 3112940), (10, 2801646), (12, 2334705), (15, 1867764), (18, 1556470), (20, 1400823), (30, 933882), (36, 778235), (45, 622588), (60, 466941), (90, 311294), (180, 155647), (317, 88380), (491, 57060), (634, 44190), (951, 29460), (982, 28530), (1268, 22095), (1473, 19020), (1585, 17676), (1902, 14730), (1964, 14265), (2455, 11412), (2853, 9820), (2946, 9510), (3170, 8838), (3804, 7365), (4419, 6340), (4755, 5892), (4910, 5706)]