1221890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:194

約数の個数: 32

約数和(自身を含む): 2376000

約数和(自身を除く): 1154110

約数列:

[1, 2, 5, 10, 19, 38, 59, 95, 109, 118, 190, 218, 295, 545, 590, 1090, 1121, 2071, 2242, 4142, 5605, 6431, 10355, 11210, 12862, 20710, 32155, 64310, 122189, 244378, 610945, 1221890]

約数ペア:

[(1, 1221890), (2, 610945), (5, 244378), (10, 122189), (19, 64310), (38, 32155), (59, 20710), (95, 12862), (109, 11210), (118, 10355), (190, 6431), (218, 5605), (295, 4142), (545, 2242), (590, 2071), (1090, 1121)]