154379720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{20639}}^1$

素因数の和:20678

約数の個数: 64

約数和(自身を含む): 401241600

約数和(自身を除く): 246861880

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 3740, 7480, 20639, 41278, 82556, 103195, 165112, 206390, 227029, 350863, 412780, 454058, 701726, 825560, 908116, 1135145, 1403452, 1754315, 1816232, 2270290, 2806904, 3508630, 3859493, 4540580, 7017260, 7718986, 9081160, 14034520, 15437972, 19297465, 30875944, 38594930, 77189860, 154379720]

約数ペア:

[(1, 154379720), (2, 77189860), (4, 38594930), (5, 30875944), (8, 19297465), (10, 15437972), (11, 14034520), (17, 9081160), (20, 7718986), (22, 7017260), (34, 4540580), (40, 3859493), (44, 3508630), (55, 2806904), (68, 2270290), (85, 1816232), (88, 1754315), (110, 1403452), (136, 1135145), (170, 908116), (187, 825560), (220, 701726), (340, 454058), (374, 412780), (440, 350863), (680, 227029), (748, 206390), (935, 165112), (1496, 103195), (1870, 82556), (3740, 41278), (7480, 20639)]