20104142805

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{31973}}^1$

素因数の和:32230

約数の個数: 48

約数和(自身を含む): 35464281840

約数和(自身を除く): 15360139035

約数列:

[1, 3, 5, 9, 15, 45, 89, 157, 267, 445, 471, 785, 801, 1335, 1413, 2355, 4005, 7065, 13973, 31973, 41919, 69865, 95919, 125757, 159865, 209595, 287757, 479595, 628785, 1438785, 2845597, 5019761, 8536791, 14227985, 15059283, 25098805, 25610373, 42683955, 45177849, 75296415, 128051865, 225889245, 446758729, 1340276187, 2233793645, 4020828561, 6701380935, 20104142805]

約数ペア:

[(1, 20104142805), (3, 6701380935), (5, 4020828561), (9, 2233793645), (15, 1340276187), (45, 446758729), (89, 225889245), (157, 128051865), (267, 75296415), (445, 45177849), (471, 42683955), (785, 25610373), (801, 25098805), (1335, 15059283), (1413, 14227985), (2355, 8536791), (4005, 5019761), (7065, 2845597), (13973, 1438785), (31973, 628785), (41919, 479595), (69865, 287757), (95919, 209595), (125757, 159865)]