664796985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3191}}^1$

素因数の和:3278

約数の個数: 64

約数和(自身を含む): 1213470720

約数和(自身を除く): 548673735

約数列:

[1, 3, 5, 15, 17, 19, 43, 51, 57, 85, 95, 129, 215, 255, 285, 323, 645, 731, 817, 969, 1615, 2193, 2451, 3191, 3655, 4085, 4845, 9573, 10965, 12255, 13889, 15955, 41667, 47865, 54247, 60629, 69445, 137213, 162741, 181887, 208335, 271235, 303145, 411639, 686065, 813705, 909435, 1030693, 2058195, 2332621, 2607047, 3092079, 5153465, 6997863, 7821141, 11663105, 13035235, 15460395, 34989315, 39105705, 44319799, 132959397, 221598995, 664796985]

約数ペア:

[(1, 664796985), (3, 221598995), (5, 132959397), (15, 44319799), (17, 39105705), (19, 34989315), (43, 15460395), (51, 13035235), (57, 11663105), (85, 7821141), (95, 6997863), (129, 5153465), (215, 3092079), (255, 2607047), (285, 2332621), (323, 2058195), (645, 1030693), (731, 909435), (817, 813705), (969, 686065), (1615, 411639), (2193, 303145), (2451, 271235), (3191, 208335), (3655, 181887), (4085, 162741), (4845, 137213), (9573, 69445), (10965, 60629), (12255, 54247), (13889, 47865), (15955, 41667)]