289653620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{1733}}^1$

素因数の和:1940

約数の個数: 48

約数和(自身を含む): 623116368

約数和(自身を除く): 333462748

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 137, 244, 274, 305, 548, 610, 685, 1220, 1370, 1733, 2740, 3466, 6932, 8357, 8665, 16714, 17330, 33428, 34660, 41785, 83570, 105713, 167140, 211426, 237421, 422852, 474842, 528565, 949684, 1057130, 1187105, 2114260, 2374210, 4748420, 14482681, 28965362, 57930724, 72413405, 144826810, 289653620]

約数ペア:

[(1, 289653620), (2, 144826810), (4, 72413405), (5, 57930724), (10, 28965362), (20, 14482681), (61, 4748420), (122, 2374210), (137, 2114260), (244, 1187105), (274, 1057130), (305, 949684), (548, 528565), (610, 474842), (685, 422852), (1220, 237421), (1370, 211426), (1733, 167140), (2740, 105713), (3466, 83570), (6932, 41785), (8357, 34660), (8665, 33428), (16714, 17330)]