19423280

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2503}}^1$

素因数の和:2613

約数の個数: 40

約数和(自身を含む): 45642912

約数和(自身を除く): 26219632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 2503, 3880, 5006, 7760, 10012, 12515, 20024, 25030, 40048, 50060, 100120, 200240, 242791, 485582, 971164, 1213955, 1942328, 2427910, 3884656, 4855820, 9711640, 19423280]

約数ペア:

[(1, 19423280), (2, 9711640), (4, 4855820), (5, 3884656), (8, 2427910), (10, 1942328), (16, 1213955), (20, 971164), (40, 485582), (80, 242791), (97, 200240), (194, 100120), (388, 50060), (485, 40048), (776, 25030), (970, 20024), (1552, 12515), (1940, 10012), (2503, 7760), (3880, 5006)]