279997120

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67307}}^1$

素因数の和:67337

約数の個数: 56

約数和(自身を含む): 718041744

約数和(自身を除く): 438044624

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 67307, 134614, 269228, 336535, 538456, 673070, 874991, 1076912, 1346140, 1749982, 2153824, 2692280, 3499964, 4307648, 4374955, 5384560, 6999928, 8749910, 10769120, 13999856, 17499820, 21538240, 27999712, 34999640, 55999424, 69999280, 139998560, 279997120]

約数ペア:

[(1, 279997120), (2, 139998560), (4, 69999280), (5, 55999424), (8, 34999640), (10, 27999712), (13, 21538240), (16, 17499820), (20, 13999856), (26, 10769120), (32, 8749910), (40, 6999928), (52, 5384560), (64, 4374955), (65, 4307648), (80, 3499964), (104, 2692280), (130, 2153824), (160, 1749982), (208, 1346140), (260, 1076912), (320, 874991), (416, 673070), (520, 538456), (832, 336535), (1040, 269228), (2080, 134614), (4160, 67307)]