204254840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{863}}^1$

素因数の和:1032

約数の個数: 64

約数和(自身を含む): 472469760

約数和(自身を除く): 268214920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 97, 122, 194, 244, 305, 388, 485, 488, 610, 776, 863, 970, 1220, 1726, 1940, 2440, 3452, 3880, 4315, 5917, 6904, 8630, 11834, 17260, 23668, 29585, 34520, 47336, 52643, 59170, 83711, 105286, 118340, 167422, 210572, 236680, 263215, 334844, 418555, 421144, 526430, 669688, 837110, 1052860, 1674220, 2105720, 3348440, 5106371, 10212742, 20425484, 25531855, 40850968, 51063710, 102127420, 204254840]

約数ペア:

[(1, 204254840), (2, 102127420), (4, 51063710), (5, 40850968), (8, 25531855), (10, 20425484), (20, 10212742), (40, 5106371), (61, 3348440), (97, 2105720), (122, 1674220), (194, 1052860), (244, 837110), (305, 669688), (388, 526430), (485, 421144), (488, 418555), (610, 334844), (776, 263215), (863, 236680), (970, 210572), (1220, 167422), (1726, 118340), (1940, 105286), (2440, 83711), (3452, 59170), (3880, 52643), (4315, 47336), (5917, 34520), (6904, 29585), (8630, 23668), (11834, 17260)]