20808604920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{20641}}^1$

素因数の和:20957

約数の個数: 128

約数和(自身を含む): 64680468480

約数和(自身を除く): 43871863560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 271, 310, 372, 465, 542, 620, 744, 813, 930, 1084, 1240, 1355, 1626, 1860, 2168, 2710, 3252, 3720, 4065, 5420, 6504, 8130, 8401, 10840, 16260, 16802, 20641, 25203, 32520, 33604, 41282, 42005, 50406, 61923, 67208, 82564, 84010, 100812, 103205, 123846, 126015, 165128, 168020, 201624, 206410, 247692, 252030, 309615, 336040, 412820, 495384, 504060, 619230, 639871, 825640, 1008120, 1238460, 1279742, 1919613, 2476920, 2559484, 3199355, 3839226, 5118968, 5593711, 6398710, 7678452, 9598065, 11187422, 12797420, 15356904, 16781133, 19196130, 22374844, 25594840, 27968555, 33562266, 38392260, 44749688, 55937110, 67124532, 76784520, 83905665, 111874220, 134249064, 167811330, 173405041, 223748440, 335622660, 346810082, 520215123, 671245320, 693620164, 867025205, 1040430246, 1387240328, 1734050410, 2080860492, 2601075615, 3468100820, 4161720984, 5202151230, 6936201640, 10404302460, 20808604920]

約数ペア:

[(1, 20808604920), (2, 10404302460), (3, 6936201640), (4, 5202151230), (5, 4161720984), (6, 3468100820), (8, 2601075615), (10, 2080860492), (12, 1734050410), (15, 1387240328), (20, 1040430246), (24, 867025205), (30, 693620164), (31, 671245320), (40, 520215123), (60, 346810082), (62, 335622660), (93, 223748440), (120, 173405041), (124, 167811330), (155, 134249064), (186, 111874220), (248, 83905665), (271, 76784520), (310, 67124532), (372, 55937110), (465, 44749688), (542, 38392260), (620, 33562266), (744, 27968555), (813, 25594840), (930, 22374844), (1084, 19196130), (1240, 16781133), (1355, 15356904), (1626, 12797420), (1860, 11187422), (2168, 9598065), (2710, 7678452), (3252, 6398710), (3720, 5593711), (4065, 5118968), (5420, 3839226), (6504, 3199355), (8130, 2559484), (8401, 2476920), (10840, 1919613), (16260, 1279742), (16802, 1238460), (20641, 1008120), (25203, 825640), (32520, 639871), (33604, 619230), (41282, 504060), (42005, 495384), (50406, 412820), (61923, 336040), (67208, 309615), (82564, 252030), (84010, 247692), (100812, 206410), (103205, 201624), (123846, 168020), (126015, 165128)]