20145166720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{35407}}^1$

素因数の和:35560

約数の個数: 128

約数和(自身を含む): 55474421760

約数和(自身を除く): 35329255040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 127, 128, 140, 160, 224, 254, 280, 320, 448, 508, 560, 635, 640, 889, 896, 1016, 1120, 1270, 1778, 2032, 2240, 2540, 3556, 4064, 4445, 4480, 5080, 7112, 8128, 8890, 10160, 14224, 16256, 17780, 20320, 28448, 35407, 35560, 40640, 56896, 70814, 71120, 81280, 113792, 141628, 142240, 177035, 247849, 283256, 284480, 354070, 495698, 566512, 568960, 708140, 991396, 1133024, 1239245, 1416280, 1982792, 2266048, 2478490, 2832560, 3965584, 4496689, 4532096, 4956980, 5665120, 7931168, 8993378, 9913960, 11330240, 15862336, 17986756, 19827920, 22483445, 22660480, 31476823, 31724672, 35973512, 39655840, 44966890, 62953646, 71947024, 79311680, 89933780, 125907292, 143894048, 157384115, 158623360, 179867560, 251814584, 287788096, 314768230, 359735120, 503629168, 575576192, 629536460, 719470240, 1007258336, 1259072920, 1438940480, 2014516672, 2518145840, 2877880960, 4029033344, 5036291680, 10072583360, 20145166720]

約数ペア:

[(1, 20145166720), (2, 10072583360), (4, 5036291680), (5, 4029033344), (7, 2877880960), (8, 2518145840), (10, 2014516672), (14, 1438940480), (16, 1259072920), (20, 1007258336), (28, 719470240), (32, 629536460), (35, 575576192), (40, 503629168), (56, 359735120), (64, 314768230), (70, 287788096), (80, 251814584), (112, 179867560), (127, 158623360), (128, 157384115), (140, 143894048), (160, 125907292), (224, 89933780), (254, 79311680), (280, 71947024), (320, 62953646), (448, 44966890), (508, 39655840), (560, 35973512), (635, 31724672), (640, 31476823), (889, 22660480), (896, 22483445), (1016, 19827920), (1120, 17986756), (1270, 15862336), (1778, 11330240), (2032, 9913960), (2240, 8993378), (2540, 7931168), (3556, 5665120), (4064, 4956980), (4445, 4532096), (4480, 4496689), (5080, 3965584), (7112, 2832560), (8128, 2478490), (8890, 2266048), (10160, 1982792), (14224, 1416280), (16256, 1239245), (17780, 1133024), (20320, 991396), (28448, 708140), (35407, 568960), (35560, 566512), (40640, 495698), (56896, 354070), (70814, 284480), (71120, 283256), (81280, 247849), (113792, 177035), (141628, 142240)]