20876695

素因数分解:

$5^1\times 7^4\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:117

約数の個数: 40

約数和(自身を含む): 30654144

約数和(自身を除く): 9777449

約数列:

[1, 5, 7, 35, 37, 47, 49, 185, 235, 245, 259, 329, 343, 1295, 1645, 1715, 1739, 1813, 2303, 2401, 8695, 9065, 11515, 12005, 12173, 12691, 16121, 60865, 63455, 80605, 85211, 88837, 112847, 426055, 444185, 564235, 596477, 2982385, 4175339, 20876695]

約数ペア:

[(1, 20876695), (5, 4175339), (7, 2982385), (35, 596477), (37, 564235), (47, 444185), (49, 426055), (185, 112847), (235, 88837), (245, 85211), (259, 80605), (329, 63455), (343, 60865), (1295, 16121), (1645, 12691), (1715, 12173), (1739, 12005), (1813, 11515), (2303, 9065), (2401, 8695)]