128919560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2203}}^1$

素因数の和:2251

約数の個数: 128

約数和(自身を含む): 380851200

約数和(自身を除く): 251931640

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 88, 95, 110, 133, 140, 152, 154, 190, 209, 220, 266, 280, 308, 380, 385, 418, 440, 532, 616, 665, 760, 770, 836, 1045, 1064, 1330, 1463, 1540, 1672, 2090, 2203, 2660, 2926, 3080, 4180, 4406, 5320, 5852, 7315, 8360, 8812, 11015, 11704, 14630, 15421, 17624, 22030, 24233, 29260, 30842, 41857, 44060, 48466, 58520, 61684, 77105, 83714, 88120, 96932, 121165, 123368, 154210, 167428, 169631, 193864, 209285, 242330, 292999, 308420, 334856, 339262, 418570, 460427, 484660, 585998, 616840, 678524, 837140, 848155, 920854, 969320, 1171996, 1357048, 1464995, 1674280, 1696310, 1841708, 2302135, 2343992, 2929990, 3222989, 3392620, 3683416, 4604270, 5859980, 6445978, 6785240, 9208540, 11719960, 12891956, 16114945, 18417080, 25783912, 32229890, 64459780, 128919560]

約数ペア:

[(1, 128919560), (2, 64459780), (4, 32229890), (5, 25783912), (7, 18417080), (8, 16114945), (10, 12891956), (11, 11719960), (14, 9208540), (19, 6785240), (20, 6445978), (22, 5859980), (28, 4604270), (35, 3683416), (38, 3392620), (40, 3222989), (44, 2929990), (55, 2343992), (56, 2302135), (70, 1841708), (76, 1696310), (77, 1674280), (88, 1464995), (95, 1357048), (110, 1171996), (133, 969320), (140, 920854), (152, 848155), (154, 837140), (190, 678524), (209, 616840), (220, 585998), (266, 484660), (280, 460427), (308, 418570), (380, 339262), (385, 334856), (418, 308420), (440, 292999), (532, 242330), (616, 209285), (665, 193864), (760, 169631), (770, 167428), (836, 154210), (1045, 123368), (1064, 121165), (1330, 96932), (1463, 88120), (1540, 83714), (1672, 77105), (2090, 61684), (2203, 58520), (2660, 48466), (2926, 44060), (3080, 41857), (4180, 30842), (4406, 29260), (5320, 24233), (5852, 22030), (7315, 17624), (8360, 15421), (8812, 14630), (11015, 11704)]