19727140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{3413}}^1$

素因数の和:3456

約数の個数: 36

約数和(自身を含む): 44020116

約数和(自身を除く): 24292976

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 3413, 5780, 6826, 13652, 17065, 34130, 58021, 68260, 116042, 232084, 290105, 580210, 986357, 1160420, 1972714, 3945428, 4931785, 9863570, 19727140]

約数ペア:

[(1, 19727140), (2, 9863570), (4, 4931785), (5, 3945428), (10, 1972714), (17, 1160420), (20, 986357), (34, 580210), (68, 290105), (85, 232084), (170, 116042), (289, 68260), (340, 58021), (578, 34130), (1156, 17065), (1445, 13652), (2890, 6826), (3413, 5780)]