121577560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:221

約数の個数: 128

約数和(自身を含む): 310262400

約数和(自身を除く): 188684840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 71, 74, 89, 104, 130, 142, 148, 178, 185, 260, 284, 296, 355, 356, 370, 445, 481, 520, 568, 710, 712, 740, 890, 923, 962, 1157, 1420, 1480, 1780, 1846, 1924, 2314, 2405, 2627, 2840, 3293, 3560, 3692, 3848, 4615, 4628, 4810, 5254, 5785, 6319, 6586, 7384, 9230, 9256, 9620, 10508, 11570, 12638, 13135, 13172, 16465, 18460, 19240, 21016, 23140, 25276, 26270, 26344, 31595, 32930, 34151, 36920, 42809, 46280, 50552, 52540, 63190, 65860, 68302, 82147, 85618, 105080, 126380, 131720, 136604, 164294, 170755, 171236, 214045, 233803, 252760, 273208, 328588, 341510, 342472, 410735, 428090, 467606, 657176, 683020, 821470, 856180, 935212, 1169015, 1366040, 1642940, 1712360, 1870424, 2338030, 3039439, 3285880, 4676060, 6078878, 9352120, 12157756, 15197195, 24315512, 30394390, 60788780, 121577560]

約数ペア:

[(1, 121577560), (2, 60788780), (4, 30394390), (5, 24315512), (8, 15197195), (10, 12157756), (13, 9352120), (20, 6078878), (26, 4676060), (37, 3285880), (40, 3039439), (52, 2338030), (65, 1870424), (71, 1712360), (74, 1642940), (89, 1366040), (104, 1169015), (130, 935212), (142, 856180), (148, 821470), (178, 683020), (185, 657176), (260, 467606), (284, 428090), (296, 410735), (355, 342472), (356, 341510), (370, 328588), (445, 273208), (481, 252760), (520, 233803), (568, 214045), (710, 171236), (712, 170755), (740, 164294), (890, 136604), (923, 131720), (962, 126380), (1157, 105080), (1420, 85618), (1480, 82147), (1780, 68302), (1846, 65860), (1924, 63190), (2314, 52540), (2405, 50552), (2627, 46280), (2840, 42809), (3293, 36920), (3560, 34151), (3692, 32930), (3848, 31595), (4615, 26344), (4628, 26270), (4810, 25276), (5254, 23140), (5785, 21016), (6319, 19240), (6586, 18460), (7384, 16465), (9230, 13172), (9256, 13135), (9620, 12638), (10508, 11570)]