87777720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:390

約数の個数: 192

約数和(自身を含む): 308599200

約数和(自身を除く): 220821480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 41, 45, 57, 60, 72, 76, 82, 90, 95, 114, 120, 123, 152, 164, 171, 180, 190, 205, 228, 246, 285, 313, 328, 342, 360, 369, 380, 410, 456, 492, 570, 615, 626, 684, 738, 760, 779, 820, 855, 939, 984, 1140, 1230, 1252, 1368, 1476, 1558, 1565, 1640, 1710, 1845, 1878, 2280, 2337, 2460, 2504, 2817, 2952, 3116, 3130, 3420, 3690, 3756, 3895, 4674, 4695, 4920, 5634, 5947, 6232, 6260, 6840, 7011, 7380, 7512, 7790, 9348, 9390, 11268, 11685, 11894, 12520, 12833, 14022, 14085, 14760, 15580, 17841, 18696, 18780, 22536, 23370, 23788, 25666, 28044, 28170, 29735, 31160, 35055, 35682, 37560, 38499, 46740, 47576, 51332, 53523, 56088, 56340, 59470, 64165, 70110, 71364, 76998, 89205, 93480, 102664, 107046, 112680, 115497, 118940, 128330, 140220, 142728, 153996, 178410, 192495, 214092, 230994, 237880, 243827, 256660, 267615, 280440, 307992, 356820, 384990, 428184, 461988, 487654, 513320, 535230, 577485, 713640, 731481, 769980, 923976, 975308, 1070460, 1154970, 1219135, 1462962, 1539960, 1950616, 2140920, 2194443, 2309940, 2438270, 2925924, 3657405, 4388886, 4619880, 4876540, 5851848, 7314810, 8777772, 9753080, 10972215, 14629620, 17555544, 21944430, 29259240, 43888860, 87777720]

約数ペア:

[(1, 87777720), (2, 43888860), (3, 29259240), (4, 21944430), (5, 17555544), (6, 14629620), (8, 10972215), (9, 9753080), (10, 8777772), (12, 7314810), (15, 5851848), (18, 4876540), (19, 4619880), (20, 4388886), (24, 3657405), (30, 2925924), (36, 2438270), (38, 2309940), (40, 2194443), (41, 2140920), (45, 1950616), (57, 1539960), (60, 1462962), (72, 1219135), (76, 1154970), (82, 1070460), (90, 975308), (95, 923976), (114, 769980), (120, 731481), (123, 713640), (152, 577485), (164, 535230), (171, 513320), (180, 487654), (190, 461988), (205, 428184), (228, 384990), (246, 356820), (285, 307992), (313, 280440), (328, 267615), (342, 256660), (360, 243827), (369, 237880), (380, 230994), (410, 214092), (456, 192495), (492, 178410), (570, 153996), (615, 142728), (626, 140220), (684, 128330), (738, 118940), (760, 115497), (779, 112680), (820, 107046), (855, 102664), (939, 93480), (984, 89205), (1140, 76998), (1230, 71364), (1252, 70110), (1368, 64165), (1476, 59470), (1558, 56340), (1565, 56088), (1640, 53523), (1710, 51332), (1845, 47576), (1878, 46740), (2280, 38499), (2337, 37560), (2460, 35682), (2504, 35055), (2817, 31160), (2952, 29735), (3116, 28170), (3130, 28044), (3420, 25666), (3690, 23788), (3756, 23370), (3895, 22536), (4674, 18780), (4695, 18696), (4920, 17841), (5634, 15580), (5947, 14760), (6232, 14085), (6260, 14022), (6840, 12833), (7011, 12520), (7380, 11894), (7512, 11685), (7790, 11268), (9348, 9390)]