19897962140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{3593}}^1\times {\mathrm{5651}}^1$

素因数の和:9267

約数の個数: 72

約数和(自身を含む): 48630011472

約数和(自身を除く): 28732049332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 3593, 5651, 7186, 11302, 14372, 17965, 22604, 25151, 28255, 35930, 39557, 50302, 56510, 71860, 79114, 100604, 113020, 125755, 158228, 176057, 197785, 251510, 276899, 352114, 395570, 503020, 553798, 704228, 791140, 880285, 1107596, 1384495, 1760570, 2768990, 3521140, 5537980, 20304043, 40608086, 81216172, 101520215, 142128301, 203040430, 284256602, 406080860, 568513204, 710641505, 994898107, 1421283010, 1989796214, 2842566020, 3979592428, 4974490535, 9948981070, 19897962140]

約数ペア:

[(1, 19897962140), (2, 9948981070), (4, 4974490535), (5, 3979592428), (7, 2842566020), (10, 1989796214), (14, 1421283010), (20, 994898107), (28, 710641505), (35, 568513204), (49, 406080860), (70, 284256602), (98, 203040430), (140, 142128301), (196, 101520215), (245, 81216172), (490, 40608086), (980, 20304043), (3593, 5537980), (5651, 3521140), (7186, 2768990), (11302, 1760570), (14372, 1384495), (17965, 1107596), (22604, 880285), (25151, 791140), (28255, 704228), (35930, 553798), (39557, 503020), (50302, 395570), (56510, 352114), (71860, 276899), (79114, 251510), (100604, 197785), (113020, 176057), (125755, 158228)]