19546840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{8011}}^1$

素因数の和:8083

約数の個数: 32

約数和(自身を含む): 44706960

約数和(自身を除く): 25160120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 8011, 16022, 32044, 40055, 64088, 80110, 160220, 320440, 488671, 977342, 1954684, 2443355, 3909368, 4886710, 9773420, 19546840]

約数ペア:

[(1, 19546840), (2, 9773420), (4, 4886710), (5, 3909368), (8, 2443355), (10, 1954684), (20, 977342), (40, 488671), (61, 320440), (122, 160220), (244, 80110), (305, 64088), (488, 40055), (610, 32044), (1220, 16022), (2440, 8011)]