28941560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{337}}^1$

素因数の和:480

約数の個数: 64

約数和(自身を含む): 69357600

約数和(自身を除く): 40416040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 113, 152, 190, 226, 337, 380, 452, 565, 674, 760, 904, 1130, 1348, 1685, 2147, 2260, 2696, 3370, 4294, 4520, 6403, 6740, 8588, 10735, 12806, 13480, 17176, 21470, 25612, 32015, 38081, 42940, 51224, 64030, 76162, 85880, 128060, 152324, 190405, 256120, 304648, 380810, 723539, 761620, 1447078, 1523240, 2894156, 3617695, 5788312, 7235390, 14470780, 28941560]

約数ペア:

[(1, 28941560), (2, 14470780), (4, 7235390), (5, 5788312), (8, 3617695), (10, 2894156), (19, 1523240), (20, 1447078), (38, 761620), (40, 723539), (76, 380810), (95, 304648), (113, 256120), (152, 190405), (190, 152324), (226, 128060), (337, 85880), (380, 76162), (452, 64030), (565, 51224), (674, 42940), (760, 38081), (904, 32015), (1130, 25612), (1348, 21470), (1685, 17176), (2147, 13480), (2260, 12806), (2696, 10735), (3370, 8588), (4294, 6740), (4520, 6403)]