1256339920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{7247}}^1$

素因数の和:7468

約数の個数: 80

約数和(自身を含む): 3203152128

約数和(自身を除く): 1946812208

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 197, 220, 394, 440, 788, 880, 985, 1576, 1970, 2167, 3152, 3940, 4334, 7247, 7880, 8668, 10835, 14494, 15760, 17336, 21670, 28988, 34672, 36235, 43340, 57976, 72470, 79717, 86680, 115952, 144940, 159434, 173360, 289880, 318868, 398585, 579760, 637736, 797170, 1275472, 1427659, 1594340, 2855318, 3188680, 5710636, 6377360, 7138295, 11421272, 14276590, 15704249, 22842544, 28553180, 31408498, 57106360, 62816996, 78521245, 114212720, 125633992, 157042490, 251267984, 314084980, 628169960, 1256339920]

約数ペア:

[(1, 1256339920), (2, 628169960), (4, 314084980), (5, 251267984), (8, 157042490), (10, 125633992), (11, 114212720), (16, 78521245), (20, 62816996), (22, 57106360), (40, 31408498), (44, 28553180), (55, 22842544), (80, 15704249), (88, 14276590), (110, 11421272), (176, 7138295), (197, 6377360), (220, 5710636), (394, 3188680), (440, 2855318), (788, 1594340), (880, 1427659), (985, 1275472), (1576, 797170), (1970, 637736), (2167, 579760), (3152, 398585), (3940, 318868), (4334, 289880), (7247, 173360), (7880, 159434), (8668, 144940), (10835, 115952), (14494, 86680), (15760, 79717), (17336, 72470), (21670, 57976), (28988, 43340), (34672, 36235)]