20194609370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{195893}}^1$

素因数の和:195987

約数の個数: 48

約数和(自身を含む): 40007039832

約数和(自身を除く): 19812430462

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 169, 305, 338, 610, 793, 845, 1586, 1690, 3965, 7930, 10309, 20618, 51545, 103090, 195893, 391786, 979465, 1958930, 2546609, 5093218, 11949473, 12733045, 23898946, 25466090, 33105917, 59747365, 66211834, 119494730, 155343149, 165529585, 310686298, 331059170, 776715745, 1553431490, 2019460937, 4038921874, 10097304685, 20194609370]

約数ペア:

[(1, 20194609370), (2, 10097304685), (5, 4038921874), (10, 2019460937), (13, 1553431490), (26, 776715745), (61, 331059170), (65, 310686298), (122, 165529585), (130, 155343149), (169, 119494730), (305, 66211834), (338, 59747365), (610, 33105917), (793, 25466090), (845, 23898946), (1586, 12733045), (1690, 11949473), (3965, 5093218), (7930, 2546609), (10309, 1958930), (20618, 979465), (51545, 391786), (103090, 195893)]