1720244540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1\times {\mathrm{811}}^1$

素因数の和:1075

約数の個数: 96

約数和(自身を含む): 4201612800

約数和(自身を除く): 2481368260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 139, 140, 218, 278, 436, 545, 556, 695, 763, 811, 973, 1090, 1390, 1526, 1622, 1946, 2180, 2780, 3052, 3244, 3815, 3892, 4055, 4865, 5677, 7630, 8110, 9730, 11354, 15151, 15260, 16220, 19460, 22708, 28385, 30302, 56770, 60604, 75755, 88399, 106057, 112729, 113540, 151510, 176798, 212114, 225458, 303020, 353596, 424228, 441995, 450916, 530285, 563645, 618793, 789103, 883990, 1060570, 1127290, 1237586, 1578206, 1767980, 2121140, 2254580, 2475172, 3093965, 3156412, 3945515, 6187930, 7891030, 12287461, 12375860, 15782060, 24574922, 49149844, 61437305, 86012227, 122874610, 172024454, 245749220, 344048908, 430061135, 860122270, 1720244540]

約数ペア:

[(1, 1720244540), (2, 860122270), (4, 430061135), (5, 344048908), (7, 245749220), (10, 172024454), (14, 122874610), (20, 86012227), (28, 61437305), (35, 49149844), (70, 24574922), (109, 15782060), (139, 12375860), (140, 12287461), (218, 7891030), (278, 6187930), (436, 3945515), (545, 3156412), (556, 3093965), (695, 2475172), (763, 2254580), (811, 2121140), (973, 1767980), (1090, 1578206), (1390, 1237586), (1526, 1127290), (1622, 1060570), (1946, 883990), (2180, 789103), (2780, 618793), (3052, 563645), (3244, 530285), (3815, 450916), (3892, 441995), (4055, 424228), (4865, 353596), (5677, 303020), (7630, 225458), (8110, 212114), (9730, 176798), (11354, 151510), (15151, 113540), (15260, 112729), (16220, 106057), (19460, 88399), (22708, 75755), (28385, 60604), (30302, 56770)]