21682184920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1069}}^1\times {\mathrm{1487}}^1$

素因数の和:2609

約数の個数: 128

約数和(自身を含む): 55025049600

約数和(自身を除く): 33342864680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1069, 1240, 1364, 1487, 1705, 2138, 2728, 2974, 3410, 4276, 5345, 5948, 6820, 7435, 8552, 10690, 11759, 11896, 13640, 14870, 16357, 21380, 23518, 29740, 32714, 33139, 42760, 46097, 47036, 58795, 59480, 65428, 66278, 81785, 92194, 94072, 117590, 130856, 132556, 163570, 165695, 184388, 230485, 235180, 265112, 327140, 331390, 364529, 368776, 460970, 470360, 507067, 654280, 662780, 729058, 921940, 1014134, 1325560, 1458116, 1589603, 1822645, 1843880, 2028268, 2535335, 2916232, 3179206, 3645290, 4056536, 5070670, 6358412, 7290580, 7948015, 10141340, 12716824, 14581160, 15896030, 17485633, 20282680, 31792060, 34971266, 49277693, 63584120, 69942532, 87428165, 98555386, 139885064, 174856330, 197110772, 246388465, 349712660, 394221544, 492776930, 542054623, 699425320, 985553860, 1084109246, 1971107720, 2168218492, 2710273115, 4336436984, 5420546230, 10841092460, 21682184920]

約数ペア:

[(1, 21682184920), (2, 10841092460), (4, 5420546230), (5, 4336436984), (8, 2710273115), (10, 2168218492), (11, 1971107720), (20, 1084109246), (22, 985553860), (31, 699425320), (40, 542054623), (44, 492776930), (55, 394221544), (62, 349712660), (88, 246388465), (110, 197110772), (124, 174856330), (155, 139885064), (220, 98555386), (248, 87428165), (310, 69942532), (341, 63584120), (440, 49277693), (620, 34971266), (682, 31792060), (1069, 20282680), (1240, 17485633), (1364, 15896030), (1487, 14581160), (1705, 12716824), (2138, 10141340), (2728, 7948015), (2974, 7290580), (3410, 6358412), (4276, 5070670), (5345, 4056536), (5948, 3645290), (6820, 3179206), (7435, 2916232), (8552, 2535335), (10690, 2028268), (11759, 1843880), (11896, 1822645), (13640, 1589603), (14870, 1458116), (16357, 1325560), (21380, 1014134), (23518, 921940), (29740, 729058), (32714, 662780), (33139, 654280), (42760, 507067), (46097, 470360), (47036, 460970), (58795, 368776), (59480, 364529), (65428, 331390), (66278, 327140), (81785, 265112), (92194, 235180), (94072, 230485), (117590, 184388), (130856, 165695), (132556, 163570)]