21823000

素因数分解:

$2^3\times 5^3\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 51760800

約数和(自身を除く): 29937800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 139, 157, 200, 250, 278, 314, 500, 556, 628, 695, 785, 1000, 1112, 1256, 1390, 1570, 2780, 3140, 3475, 3925, 5560, 6280, 6950, 7850, 13900, 15700, 17375, 19625, 21823, 27800, 31400, 34750, 39250, 43646, 69500, 78500, 87292, 109115, 139000, 157000, 174584, 218230, 436460, 545575, 872920, 1091150, 2182300, 2727875, 4364600, 5455750, 10911500, 21823000]

約数ペア:

[(1, 21823000), (2, 10911500), (4, 5455750), (5, 4364600), (8, 2727875), (10, 2182300), (20, 1091150), (25, 872920), (40, 545575), (50, 436460), (100, 218230), (125, 174584), (139, 157000), (157, 139000), (200, 109115), (250, 87292), (278, 78500), (314, 69500), (500, 43646), (556, 39250), (628, 34750), (695, 31400), (785, 27800), (1000, 21823), (1112, 19625), (1256, 17375), (1390, 15700), (1570, 13900), (2780, 7850), (3140, 6950), (3475, 6280), (3925, 5560)]