28828400

素因数分解:

$2^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{743}}^1$

素因数の和:858

約数の個数: 60

約数和(自身を含む): 70068432

約数和(自身を除く): 41240032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 194, 200, 388, 400, 485, 743, 776, 970, 1486, 1552, 1940, 2425, 2972, 3715, 3880, 4850, 5944, 7430, 7760, 9700, 11888, 14860, 18575, 19400, 29720, 37150, 38800, 59440, 72071, 74300, 144142, 148600, 288284, 297200, 360355, 576568, 720710, 1153136, 1441420, 1801775, 2882840, 3603550, 5765680, 7207100, 14414200, 28828400]

約数ペア:

[(1, 28828400), (2, 14414200), (4, 7207100), (5, 5765680), (8, 3603550), (10, 2882840), (16, 1801775), (20, 1441420), (25, 1153136), (40, 720710), (50, 576568), (80, 360355), (97, 297200), (100, 288284), (194, 148600), (200, 144142), (388, 74300), (400, 72071), (485, 59440), (743, 38800), (776, 37150), (970, 29720), (1486, 19400), (1552, 18575), (1940, 14860), (2425, 11888), (2972, 9700), (3715, 7760), (3880, 7430), (4850, 5944)]