408099520

素因数分解:

$2^6\times 5^1\times {\mathrm{157}}^1\times {\mathrm{8123}}^1$

素因数の和:8297

約数の個数: 56

約数和(自身を含む): 978097104

約数和(自身を除く): 569997584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 157, 160, 314, 320, 628, 785, 1256, 1570, 2512, 3140, 5024, 6280, 8123, 10048, 12560, 16246, 25120, 32492, 40615, 50240, 64984, 81230, 129968, 162460, 259936, 324920, 519872, 649840, 1275311, 1299680, 2550622, 2599360, 5101244, 6376555, 10202488, 12753110, 20404976, 25506220, 40809952, 51012440, 81619904, 102024880, 204049760, 408099520]

約数ペア:

[(1, 408099520), (2, 204049760), (4, 102024880), (5, 81619904), (8, 51012440), (10, 40809952), (16, 25506220), (20, 20404976), (32, 12753110), (40, 10202488), (64, 6376555), (80, 5101244), (157, 2599360), (160, 2550622), (314, 1299680), (320, 1275311), (628, 649840), (785, 519872), (1256, 324920), (1570, 259936), (2512, 162460), (3140, 129968), (5024, 81230), (6280, 64984), (8123, 50240), (10048, 40615), (12560, 32492), (16246, 25120)]