20115552520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{1091}}^1$

素因数の和:1548

約数の個数: 192

約数和(自身を含む): 55123286400

約数和(自身を除く): 35007733880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 49, 56, 70, 92, 98, 115, 140, 161, 184, 196, 230, 245, 280, 322, 392, 409, 460, 490, 644, 805, 818, 920, 980, 1091, 1127, 1288, 1610, 1636, 1960, 2045, 2182, 2254, 2863, 3220, 3272, 4090, 4364, 4508, 5455, 5635, 5726, 6440, 7637, 8180, 8728, 9016, 9407, 10910, 11270, 11452, 14315, 15274, 16360, 18814, 20041, 21820, 22540, 22904, 25093, 28630, 30548, 37628, 38185, 40082, 43640, 45080, 47035, 50186, 53459, 57260, 61096, 65849, 75256, 76370, 80164, 94070, 100205, 100372, 106918, 114520, 125465, 131698, 152740, 160328, 175651, 188140, 200410, 200744, 213836, 250930, 263396, 267295, 305480, 329245, 351302, 376280, 400820, 427672, 446219, 460943, 501860, 526792, 534590, 658490, 702604, 801640, 878255, 892438, 921886, 1003720, 1069180, 1229557, 1316980, 1405208, 1756510, 1784876, 1843772, 2138360, 2231095, 2304715, 2459114, 2633960, 3123533, 3513020, 3569752, 3687544, 4462190, 4609430, 4918228, 6147785, 6247066, 7026040, 8924380, 9218860, 9836456, 10263037, 12295570, 12494132, 15617665, 17848760, 18437720, 20526074, 21864731, 24591140, 24988264, 31235330, 41052148, 43729462, 49182280, 51315185, 62470660, 71841259, 82104296, 87458924, 102630370, 109323655, 124941320, 143682518, 174917848, 205260740, 218647310, 287365036, 359206295, 410521480, 437294620, 502888813, 574730072, 718412590, 874589240, 1005777626, 1436825180, 2011555252, 2514444065, 2873650360, 4023110504, 5028888130, 10057776260, 20115552520]

約数ペア:

[(1, 20115552520), (2, 10057776260), (4, 5028888130), (5, 4023110504), (7, 2873650360), (8, 2514444065), (10, 2011555252), (14, 1436825180), (20, 1005777626), (23, 874589240), (28, 718412590), (35, 574730072), (40, 502888813), (46, 437294620), (49, 410521480), (56, 359206295), (70, 287365036), (92, 218647310), (98, 205260740), (115, 174917848), (140, 143682518), (161, 124941320), (184, 109323655), (196, 102630370), (230, 87458924), (245, 82104296), (280, 71841259), (322, 62470660), (392, 51315185), (409, 49182280), (460, 43729462), (490, 41052148), (644, 31235330), (805, 24988264), (818, 24591140), (920, 21864731), (980, 20526074), (1091, 18437720), (1127, 17848760), (1288, 15617665), (1610, 12494132), (1636, 12295570), (1960, 10263037), (2045, 9836456), (2182, 9218860), (2254, 8924380), (2863, 7026040), (3220, 6247066), (3272, 6147785), (4090, 4918228), (4364, 4609430), (4508, 4462190), (5455, 3687544), (5635, 3569752), (5726, 3513020), (6440, 3123533), (7637, 2633960), (8180, 2459114), (8728, 2304715), (9016, 2231095), (9407, 2138360), (10910, 1843772), (11270, 1784876), (11452, 1756510), (14315, 1405208), (15274, 1316980), (16360, 1229557), (18814, 1069180), (20041, 1003720), (21820, 921886), (22540, 892438), (22904, 878255), (25093, 801640), (28630, 702604), (30548, 658490), (37628, 534590), (38185, 526792), (40082, 501860), (43640, 460943), (45080, 446219), (47035, 427672), (50186, 400820), (53459, 376280), (57260, 351302), (61096, 329245), (65849, 305480), (75256, 267295), (76370, 263396), (80164, 250930), (94070, 213836), (100205, 200744), (100372, 200410), (106918, 188140), (114520, 175651), (125465, 160328), (131698, 152740)]