661069544

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:454

約数の個数: 64

約数和(自身を含む): 1307443200

約数和(自身を除く): 646373656

約数列:

[1, 2, 4, 8, 31, 62, 124, 127, 139, 151, 248, 254, 278, 302, 508, 556, 604, 1016, 1112, 1208, 3937, 4309, 4681, 7874, 8618, 9362, 15748, 17236, 17653, 18724, 19177, 20989, 31496, 34472, 35306, 37448, 38354, 41978, 70612, 76708, 83956, 141224, 153416, 167912, 547243, 594487, 650659, 1094486, 1188974, 1301318, 2188972, 2377948, 2602636, 2665603, 4377944, 4755896, 5205272, 5331206, 10662412, 21324824, 82633693, 165267386, 330534772, 661069544]

約数ペア:

[(1, 661069544), (2, 330534772), (4, 165267386), (8, 82633693), (31, 21324824), (62, 10662412), (124, 5331206), (127, 5205272), (139, 4755896), (151, 4377944), (248, 2665603), (254, 2602636), (278, 2377948), (302, 2188972), (508, 1301318), (556, 1188974), (604, 1094486), (1016, 650659), (1112, 594487), (1208, 547243), (3937, 167912), (4309, 153416), (4681, 141224), (7874, 83956), (8618, 76708), (9362, 70612), (15748, 41978), (17236, 38354), (17653, 37448), (18724, 35306), (19177, 34472), (20989, 31496)]