20879191920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{165079}}^1$

素因数の和:165143

約数の個数: 160

約数和(自身を含む): 70744043520

約数和(自身を除く): 49864851600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 31, 34, 40, 48, 51, 60, 62, 68, 80, 85, 93, 102, 120, 124, 136, 155, 170, 186, 204, 240, 248, 255, 272, 310, 340, 372, 408, 465, 496, 510, 527, 620, 680, 744, 816, 930, 1020, 1054, 1240, 1360, 1488, 1581, 1860, 2040, 2108, 2480, 2635, 3162, 3720, 4080, 4216, 5270, 6324, 7440, 7905, 8432, 10540, 12648, 15810, 21080, 25296, 31620, 42160, 63240, 126480, 165079, 330158, 495237, 660316, 825395, 990474, 1320632, 1650790, 1980948, 2476185, 2641264, 2806343, 3301580, 3961896, 4952370, 5117449, 5612686, 6603160, 7923792, 8419029, 9904740, 10234898, 11225372, 13206320, 14031715, 15352347, 16838058, 19809480, 20469796, 22450744, 25587245, 28063430, 30704694, 33676116, 39618960, 40939592, 42095145, 44901488, 51174490, 56126860, 61409388, 67352232, 76761735, 81879184, 84190290, 86996633, 102348980, 112253720, 122818776, 134704464, 153523470, 168380580, 173993266, 204697960, 224507440, 245637552, 260989899, 307046940, 336761160, 347986532, 409395920, 434983165, 521979798, 614093880, 673522320, 695973064, 869966330, 1043959596, 1228187760, 1304949495, 1391946128, 1739932660, 2087919192, 2609898990, 3479865320, 4175838384, 5219797980, 6959730640, 10439595960, 20879191920]

約数ペア:

[(1, 20879191920), (2, 10439595960), (3, 6959730640), (4, 5219797980), (5, 4175838384), (6, 3479865320), (8, 2609898990), (10, 2087919192), (12, 1739932660), (15, 1391946128), (16, 1304949495), (17, 1228187760), (20, 1043959596), (24, 869966330), (30, 695973064), (31, 673522320), (34, 614093880), (40, 521979798), (48, 434983165), (51, 409395920), (60, 347986532), (62, 336761160), (68, 307046940), (80, 260989899), (85, 245637552), (93, 224507440), (102, 204697960), (120, 173993266), (124, 168380580), (136, 153523470), (155, 134704464), (170, 122818776), (186, 112253720), (204, 102348980), (240, 86996633), (248, 84190290), (255, 81879184), (272, 76761735), (310, 67352232), (340, 61409388), (372, 56126860), (408, 51174490), (465, 44901488), (496, 42095145), (510, 40939592), (527, 39618960), (620, 33676116), (680, 30704694), (744, 28063430), (816, 25587245), (930, 22450744), (1020, 20469796), (1054, 19809480), (1240, 16838058), (1360, 15352347), (1488, 14031715), (1581, 13206320), (1860, 11225372), (2040, 10234898), (2108, 9904740), (2480, 8419029), (2635, 7923792), (3162, 6603160), (3720, 5612686), (4080, 5117449), (4216, 4952370), (5270, 3961896), (6324, 3301580), (7440, 2806343), (7905, 2641264), (8432, 2476185), (10540, 1980948), (12648, 1650790), (15810, 1320632), (21080, 990474), (25296, 825395), (31620, 660316), (42160, 495237), (63240, 330158), (126480, 165079)]