201641660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{859}}^1$

素因数の和:987

約数の個数: 72

約数和(自身を含む): 470788080

約数和(自身を除く): 269146420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 121, 194, 220, 242, 388, 484, 485, 605, 859, 970, 1067, 1210, 1718, 1940, 2134, 2420, 3436, 4268, 4295, 5335, 8590, 9449, 10670, 11737, 17180, 18898, 21340, 23474, 37796, 46948, 47245, 58685, 83323, 94490, 103939, 117370, 166646, 188980, 207878, 234740, 333292, 415756, 416615, 519695, 833230, 916553, 1039390, 1666460, 1833106, 2078780, 3666212, 4582765, 9165530, 10082083, 18331060, 20164166, 40328332, 50410415, 100820830, 201641660]

約数ペア:

[(1, 201641660), (2, 100820830), (4, 50410415), (5, 40328332), (10, 20164166), (11, 18331060), (20, 10082083), (22, 9165530), (44, 4582765), (55, 3666212), (97, 2078780), (110, 1833106), (121, 1666460), (194, 1039390), (220, 916553), (242, 833230), (388, 519695), (484, 416615), (485, 415756), (605, 333292), (859, 234740), (970, 207878), (1067, 188980), (1210, 166646), (1718, 117370), (1940, 103939), (2134, 94490), (2420, 83323), (3436, 58685), (4268, 47245), (4295, 46948), (5335, 37796), (8590, 23474), (9449, 21340), (10670, 18898), (11737, 17180)]