199878080

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20149}}^1$

素因数の和:20197

約数の個数: 56

約数和(自身を含む): 491337600

約数和(自身を除く): 291459520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 20149, 40298, 80596, 100745, 161192, 201490, 322384, 402980, 624619, 644768, 805960, 1249238, 1289536, 1611920, 2498476, 3123095, 3223840, 4996952, 6246190, 6447680, 9993904, 12492380, 19987808, 24984760, 39975616, 49969520, 99939040, 199878080]

約数ペア:

[(1, 199878080), (2, 99939040), (4, 49969520), (5, 39975616), (8, 24984760), (10, 19987808), (16, 12492380), (20, 9993904), (31, 6447680), (32, 6246190), (40, 4996952), (62, 3223840), (64, 3123095), (80, 2498476), (124, 1611920), (155, 1289536), (160, 1249238), (248, 805960), (310, 644768), (320, 624619), (496, 402980), (620, 322384), (992, 201490), (1240, 161192), (1984, 100745), (2480, 80596), (4960, 40298), (9920, 20149)]