19871790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 49420800

約数和(自身を除く): 29549010

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 59, 103, 109, 118, 177, 206, 218, 295, 309, 327, 354, 515, 545, 590, 618, 654, 885, 1030, 1090, 1545, 1635, 1770, 3090, 3270, 6077, 6431, 11227, 12154, 12862, 18231, 19293, 22454, 30385, 32155, 33681, 36462, 38586, 56135, 60770, 64310, 67362, 91155, 96465, 112270, 168405, 182310, 192930, 336810, 662393, 1324786, 1987179, 3311965, 3974358, 6623930, 9935895, 19871790]

約数ペア:

[(1, 19871790), (2, 9935895), (3, 6623930), (5, 3974358), (6, 3311965), (10, 1987179), (15, 1324786), (30, 662393), (59, 336810), (103, 192930), (109, 182310), (118, 168405), (177, 112270), (206, 96465), (218, 91155), (295, 67362), (309, 64310), (327, 60770), (354, 56135), (515, 38586), (545, 36462), (590, 33681), (618, 32155), (654, 30385), (885, 22454), (1030, 19293), (1090, 18231), (1545, 12862), (1635, 12154), (1770, 11227), (3090, 6431), (3270, 6077)]