129481040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:257

約数の個数: 120

約数和(自身を含む): 333436248

約数和(自身を除く): 203955208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 61, 65, 80, 104, 122, 130, 157, 169, 208, 244, 260, 305, 314, 338, 488, 520, 610, 628, 676, 785, 793, 845, 976, 1040, 1220, 1256, 1352, 1570, 1586, 1690, 2041, 2440, 2512, 2704, 3140, 3172, 3380, 3965, 4082, 4880, 6280, 6344, 6760, 7930, 8164, 9577, 10205, 10309, 12560, 12688, 13520, 15860, 16328, 19154, 20410, 20618, 26533, 31720, 32656, 38308, 40820, 41236, 47885, 51545, 53066, 63440, 76616, 81640, 82472, 95770, 103090, 106132, 124501, 132665, 153232, 163280, 164944, 191540, 206180, 212264, 249002, 265330, 383080, 412360, 424528, 498004, 530660, 622505, 766160, 824720, 996008, 1061320, 1245010, 1618513, 1992016, 2122640, 2490020, 3237026, 4980040, 6474052, 8092565, 9960080, 12948104, 16185130, 25896208, 32370260, 64740520, 129481040]

約数ペア:

[(1, 129481040), (2, 64740520), (4, 32370260), (5, 25896208), (8, 16185130), (10, 12948104), (13, 9960080), (16, 8092565), (20, 6474052), (26, 4980040), (40, 3237026), (52, 2490020), (61, 2122640), (65, 1992016), (80, 1618513), (104, 1245010), (122, 1061320), (130, 996008), (157, 824720), (169, 766160), (208, 622505), (244, 530660), (260, 498004), (305, 424528), (314, 412360), (338, 383080), (488, 265330), (520, 249002), (610, 212264), (628, 206180), (676, 191540), (785, 164944), (793, 163280), (845, 153232), (976, 132665), (1040, 124501), (1220, 106132), (1256, 103090), (1352, 95770), (1570, 82472), (1586, 81640), (1690, 76616), (2041, 63440), (2440, 53066), (2512, 51545), (2704, 47885), (3140, 41236), (3172, 40820), (3380, 38308), (3965, 32656), (4082, 31720), (4880, 26533), (6280, 20618), (6344, 20410), (6760, 19154), (7930, 16328), (8164, 15860), (9577, 13520), (10205, 12688), (10309, 12560)]