16019020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 19361780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 71, 116, 142, 145, 284, 290, 355, 389, 580, 710, 778, 1420, 1556, 1945, 2059, 3890, 4118, 7780, 8236, 10295, 11281, 20590, 22562, 27619, 41180, 45124, 55238, 56405, 110476, 112810, 138095, 225620, 276190, 552380, 800951, 1601902, 3203804, 4004755, 8009510, 16019020]

約数ペア:

[(1, 16019020), (2, 8009510), (4, 4004755), (5, 3203804), (10, 1601902), (20, 800951), (29, 552380), (58, 276190), (71, 225620), (116, 138095), (142, 112810), (145, 110476), (284, 56405), (290, 55238), (355, 45124), (389, 41180), (580, 27619), (710, 22562), (778, 20590), (1420, 11281), (1556, 10295), (1945, 8236), (2059, 7780), (3890, 4118)]