20138180864

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{42683}}^1$

素因数の和:42815

約数の個数: 72

約数和(自身を含む): 42750587040

約数和(自身を除く): 22612406176

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 97, 128, 152, 194, 256, 304, 388, 608, 776, 1216, 1552, 1843, 2432, 3104, 3686, 4864, 6208, 7372, 12416, 14744, 24832, 29488, 42683, 58976, 85366, 117952, 170732, 235904, 341464, 471808, 682928, 810977, 1365856, 1621954, 2731712, 3243908, 4140251, 5463424, 6487816, 8280502, 10926848, 12975632, 16561004, 25951264, 33122008, 51902528, 66244016, 78664769, 103805056, 132488032, 157329538, 207610112, 264976064, 314659076, 529952128, 629318152, 1059904256, 1258636304, 2517272608, 5034545216, 10069090432, 20138180864]

約数ペア:

[(1, 20138180864), (2, 10069090432), (4, 5034545216), (8, 2517272608), (16, 1258636304), (19, 1059904256), (32, 629318152), (38, 529952128), (64, 314659076), (76, 264976064), (97, 207610112), (128, 157329538), (152, 132488032), (194, 103805056), (256, 78664769), (304, 66244016), (388, 51902528), (608, 33122008), (776, 25951264), (1216, 16561004), (1552, 12975632), (1843, 10926848), (2432, 8280502), (3104, 6487816), (3686, 5463424), (4864, 4140251), (6208, 3243908), (7372, 2731712), (12416, 1621954), (14744, 1365856), (24832, 810977), (29488, 682928), (42683, 471808), (58976, 341464), (85366, 235904), (117952, 170732)]