19723740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:407

約数の個数: 96

約数和(自身を含む): 59621184

約数和(自身を除く): 39897444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 61, 68, 85, 102, 122, 170, 183, 204, 244, 255, 305, 317, 340, 366, 510, 610, 634, 732, 915, 951, 1020, 1037, 1220, 1268, 1585, 1830, 1902, 2074, 3111, 3170, 3660, 3804, 4148, 4755, 5185, 5389, 6222, 6340, 9510, 10370, 10778, 12444, 15555, 16167, 19020, 19337, 20740, 21556, 26945, 31110, 32334, 38674, 53890, 58011, 62220, 64668, 77348, 80835, 96685, 107780, 116022, 161670, 193370, 232044, 290055, 323340, 328729, 386740, 580110, 657458, 986187, 1160220, 1314916, 1643645, 1972374, 3287290, 3944748, 4930935, 6574580, 9861870, 19723740]

約数ペア:

[(1, 19723740), (2, 9861870), (3, 6574580), (4, 4930935), (5, 3944748), (6, 3287290), (10, 1972374), (12, 1643645), (15, 1314916), (17, 1160220), (20, 986187), (30, 657458), (34, 580110), (51, 386740), (60, 328729), (61, 323340), (68, 290055), (85, 232044), (102, 193370), (122, 161670), (170, 116022), (183, 107780), (204, 96685), (244, 80835), (255, 77348), (305, 64668), (317, 62220), (340, 58011), (366, 53890), (510, 38674), (610, 32334), (634, 31110), (732, 26945), (915, 21556), (951, 20740), (1020, 19337), (1037, 19020), (1220, 16167), (1268, 15555), (1585, 12444), (1830, 10778), (1902, 10370), (2074, 9510), (3111, 6340), (3170, 6222), (3660, 5389), (3804, 5185), (4148, 4755)]