18903290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 41783040

約数和(自身を除く): 22879750

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 61, 70, 95, 122, 133, 190, 233, 266, 305, 427, 466, 610, 665, 854, 1159, 1165, 1330, 1631, 2135, 2318, 2330, 3262, 4270, 4427, 5795, 8113, 8155, 8854, 11590, 14213, 16226, 16310, 22135, 28426, 30989, 40565, 44270, 61978, 71065, 81130, 99491, 142130, 154945, 198982, 270047, 309890, 497455, 540094, 994910, 1350235, 1890329, 2700470, 3780658, 9451645, 18903290]

約数ペア:

[(1, 18903290), (2, 9451645), (5, 3780658), (7, 2700470), (10, 1890329), (14, 1350235), (19, 994910), (35, 540094), (38, 497455), (61, 309890), (70, 270047), (95, 198982), (122, 154945), (133, 142130), (190, 99491), (233, 81130), (266, 71065), (305, 61978), (427, 44270), (466, 40565), (610, 30989), (665, 28426), (854, 22135), (1159, 16310), (1165, 16226), (1330, 14213), (1631, 11590), (2135, 8854), (2318, 8155), (2330, 8113), (3262, 5795), (4270, 4427)]