20549690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 24240070

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 53, 58, 70, 106, 145, 191, 203, 265, 290, 371, 382, 406, 530, 742, 955, 1015, 1337, 1537, 1855, 1910, 2030, 2674, 3074, 3710, 5539, 6685, 7685, 10123, 10759, 11078, 13370, 15370, 20246, 21518, 27695, 38773, 50615, 53795, 55390, 70861, 77546, 101230, 107590, 141722, 193865, 293567, 354305, 387730, 587134, 708610, 1467835, 2054969, 2935670, 4109938, 10274845, 20549690]

約数ペア:

[(1, 20549690), (2, 10274845), (5, 4109938), (7, 2935670), (10, 2054969), (14, 1467835), (29, 708610), (35, 587134), (53, 387730), (58, 354305), (70, 293567), (106, 193865), (145, 141722), (191, 107590), (203, 101230), (265, 77546), (290, 70861), (371, 55390), (382, 53795), (406, 50615), (530, 38773), (742, 27695), (955, 21518), (1015, 20246), (1337, 15370), (1537, 13370), (1855, 11078), (1910, 10759), (2030, 10123), (2674, 7685), (3074, 6685), (3710, 5539)]