21054103600

素因数分解:

$2^4\times 5^2\times {\mathrm{12841}}^1\times {\mathrm{4099}}^1$

素因数の和:16958

約数の個数: 60

約数和(自身を含む): 50598764200

約数和(自身を除く): 29544660600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 4099, 8198, 12841, 16396, 20495, 25682, 32792, 40990, 51364, 64205, 65584, 81980, 102475, 102728, 128410, 163960, 204950, 205456, 256820, 321025, 327920, 409900, 513640, 642050, 819800, 1027280, 1284100, 1639600, 2568200, 5136400, 52635259, 105270518, 210541036, 263176295, 421082072, 526352590, 842164144, 1052705180, 1315881475, 2105410360, 2631762950, 4210820720, 5263525900, 10527051800, 21054103600]

約数ペア:

[(1, 21054103600), (2, 10527051800), (4, 5263525900), (5, 4210820720), (8, 2631762950), (10, 2105410360), (16, 1315881475), (20, 1052705180), (25, 842164144), (40, 526352590), (50, 421082072), (80, 263176295), (100, 210541036), (200, 105270518), (400, 52635259), (4099, 5136400), (8198, 2568200), (12841, 1639600), (16396, 1284100), (20495, 1027280), (25682, 819800), (32792, 642050), (40990, 513640), (51364, 409900), (64205, 327920), (65584, 321025), (81980, 256820), (102475, 205456), (102728, 204950), (128410, 163960)]