38721280

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^2\times {\mathrm{179}}^1$

素因数の和:226

約数の個数: 108

約数和(自身を含む): 100994040

約数和(自身を除く): 62272760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 169, 179, 208, 256, 260, 320, 338, 358, 416, 520, 640, 676, 716, 832, 845, 895, 1040, 1280, 1352, 1432, 1664, 1690, 1790, 2080, 2327, 2704, 2864, 3328, 3380, 3580, 4160, 4654, 5408, 5728, 6760, 7160, 8320, 9308, 10816, 11456, 11635, 13520, 14320, 16640, 18616, 21632, 22912, 23270, 27040, 28640, 30251, 37232, 43264, 45824, 46540, 54080, 57280, 60502, 74464, 93080, 108160, 114560, 121004, 148928, 151255, 186160, 216320, 229120, 242008, 297856, 302510, 372320, 484016, 595712, 605020, 744640, 968032, 1210040, 1489280, 1936064, 2420080, 2978560, 3872128, 4840160, 7744256, 9680320, 19360640, 38721280]

約数ペア:

[(1, 38721280), (2, 19360640), (4, 9680320), (5, 7744256), (8, 4840160), (10, 3872128), (13, 2978560), (16, 2420080), (20, 1936064), (26, 1489280), (32, 1210040), (40, 968032), (52, 744640), (64, 605020), (65, 595712), (80, 484016), (104, 372320), (128, 302510), (130, 297856), (160, 242008), (169, 229120), (179, 216320), (208, 186160), (256, 151255), (260, 148928), (320, 121004), (338, 114560), (358, 108160), (416, 93080), (520, 74464), (640, 60502), (676, 57280), (716, 54080), (832, 46540), (845, 45824), (895, 43264), (1040, 37232), (1280, 30251), (1352, 28640), (1432, 27040), (1664, 23270), (1690, 22912), (1790, 21632), (2080, 18616), (2327, 16640), (2704, 14320), (2864, 13520), (3328, 11635), (3380, 11456), (3580, 10816), (4160, 9308), (4654, 8320), (5408, 7160), (5728, 6760)]