641238200

素因数分解:

$2^3\times 5^2\times {\mathrm{509}}^1\times {\mathrm{6299}}^1$

素因数の和:6824

約数の個数: 48

約数和(自身を含む): 1494045000

約数和(自身を除く): 852806800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 509, 1018, 2036, 2545, 4072, 5090, 6299, 10180, 12598, 12725, 20360, 25196, 25450, 31495, 50392, 50900, 62990, 101800, 125980, 157475, 251960, 314950, 629900, 1259800, 3206191, 6412382, 12824764, 16030955, 25649528, 32061910, 64123820, 80154775, 128247640, 160309550, 320619100, 641238200]

約数ペア:

[(1, 641238200), (2, 320619100), (4, 160309550), (5, 128247640), (8, 80154775), (10, 64123820), (20, 32061910), (25, 25649528), (40, 16030955), (50, 12824764), (100, 6412382), (200, 3206191), (509, 1259800), (1018, 629900), (2036, 314950), (2545, 251960), (4072, 157475), (5090, 125980), (6299, 101800), (10180, 62990), (12598, 50900), (12725, 50392), (20360, 31495), (25196, 25450)]