128028780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64661}}^1$

素因数の和:64687

約数の個数: 72

約数和(自身を含む): 423665424

約数和(自身を除く): 295636644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 64661, 129322, 193983, 258644, 323305, 387966, 581949, 646610, 711271, 775932, 969915, 1163898, 1293220, 1422542, 1939830, 2133813, 2327796, 2845084, 2909745, 3556355, 3879660, 4267626, 5819490, 6401439, 7112710, 8535252, 10669065, 11638980, 12802878, 14225420, 21338130, 25605756, 32007195, 42676260, 64014390, 128028780]

約数ペア:

[(1, 128028780), (2, 64014390), (3, 42676260), (4, 32007195), (5, 25605756), (6, 21338130), (9, 14225420), (10, 12802878), (11, 11638980), (12, 10669065), (15, 8535252), (18, 7112710), (20, 6401439), (22, 5819490), (30, 4267626), (33, 3879660), (36, 3556355), (44, 2909745), (45, 2845084), (55, 2327796), (60, 2133813), (66, 1939830), (90, 1422542), (99, 1293220), (110, 1163898), (132, 969915), (165, 775932), (180, 711271), (198, 646610), (220, 581949), (330, 387966), (396, 323305), (495, 258644), (660, 193983), (990, 129322), (1980, 64661)]