18189981604

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{7561}}^1$

素因数の和:7876

約数の個数: 48

約数和(自身を含む): 33203592576

約数和(自身を除く): 15013610972

約数列:

[1, 2, 4, 43, 71, 86, 142, 172, 197, 284, 394, 788, 3053, 6106, 7561, 8471, 12212, 13987, 15122, 16942, 27974, 30244, 33884, 55948, 325123, 536831, 601441, 650246, 1073662, 1202882, 1300492, 1489517, 2147324, 2405764, 2979034, 5958068, 23083733, 46167466, 64049231, 92334932, 105755707, 128098462, 211511414, 256196924, 423022828, 4547495401, 9094990802, 18189981604]

約数ペア:

[(1, 18189981604), (2, 9094990802), (4, 4547495401), (43, 423022828), (71, 256196924), (86, 211511414), (142, 128098462), (172, 105755707), (197, 92334932), (284, 64049231), (394, 46167466), (788, 23083733), (3053, 5958068), (6106, 2979034), (7561, 2405764), (8471, 2147324), (12212, 1489517), (13987, 1300492), (15122, 1202882), (16942, 1073662), (27974, 650246), (30244, 601441), (33884, 536831), (55948, 325123)]