8279440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:464

約数の個数: 80

約数和(自身を含む): 21873600

約数和(自身を除く): 13594160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 419, 494, 520, 760, 838, 988, 1040, 1235, 1520, 1676, 1976, 2095, 2470, 3352, 3952, 4190, 4940, 5447, 6704, 7961, 8380, 9880, 10894, 15922, 16760, 19760, 21788, 27235, 31844, 33520, 39805, 43576, 54470, 63688, 79610, 87152, 103493, 108940, 127376, 159220, 206986, 217880, 318440, 413972, 435760, 517465, 636880, 827944, 1034930, 1655888, 2069860, 4139720, 8279440]

約数ペア:

[(1, 8279440), (2, 4139720), (4, 2069860), (5, 1655888), (8, 1034930), (10, 827944), (13, 636880), (16, 517465), (19, 435760), (20, 413972), (26, 318440), (38, 217880), (40, 206986), (52, 159220), (65, 127376), (76, 108940), (80, 103493), (95, 87152), (104, 79610), (130, 63688), (152, 54470), (190, 43576), (208, 39805), (247, 33520), (260, 31844), (304, 27235), (380, 21788), (419, 19760), (494, 16760), (520, 15922), (760, 10894), (838, 9880), (988, 8380), (1040, 7961), (1235, 6704), (1520, 5447), (1676, 4940), (1976, 4190), (2095, 3952), (2470, 3352)]