20198040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9901}}^1$

素因数の和:9932

約数の個数: 64

約数和(自身を含む): 64164960

約数和(自身を除く): 43966920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 9901, 19802, 29703, 39604, 49505, 59406, 79208, 99010, 118812, 148515, 168317, 198020, 237624, 297030, 336634, 396040, 504951, 594060, 673268, 841585, 1009902, 1188120, 1346536, 1683170, 2019804, 2524755, 3366340, 4039608, 5049510, 6732680, 10099020, 20198040]

約数ペア:

[(1, 20198040), (2, 10099020), (3, 6732680), (4, 5049510), (5, 4039608), (6, 3366340), (8, 2524755), (10, 2019804), (12, 1683170), (15, 1346536), (17, 1188120), (20, 1009902), (24, 841585), (30, 673268), (34, 594060), (40, 504951), (51, 396040), (60, 336634), (68, 297030), (85, 237624), (102, 198020), (120, 168317), (136, 148515), (170, 118812), (204, 99010), (255, 79208), (340, 59406), (408, 49505), (510, 39604), (680, 29703), (1020, 19802), (2040, 9901)]