18957568

素因数分解:

$2^8\times 7^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:243

約数の個数: 72

約数和(自身を含む): 44150400

約数和(自身を除く): 25192832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 71, 112, 128, 142, 149, 224, 256, 284, 298, 448, 497, 568, 596, 896, 994, 1043, 1136, 1192, 1792, 1988, 2086, 2272, 2384, 3976, 4172, 4544, 4768, 7952, 8344, 9088, 9536, 10579, 15904, 16688, 18176, 19072, 21158, 31808, 33376, 38144, 42316, 63616, 66752, 74053, 84632, 127232, 133504, 148106, 169264, 267008, 296212, 338528, 592424, 677056, 1184848, 1354112, 2369696, 2708224, 4739392, 9478784, 18957568]

約数ペア:

[(1, 18957568), (2, 9478784), (4, 4739392), (7, 2708224), (8, 2369696), (14, 1354112), (16, 1184848), (28, 677056), (32, 592424), (56, 338528), (64, 296212), (71, 267008), (112, 169264), (128, 148106), (142, 133504), (149, 127232), (224, 84632), (256, 74053), (284, 66752), (298, 63616), (448, 42316), (497, 38144), (568, 33376), (596, 31808), (896, 21158), (994, 19072), (1043, 18176), (1136, 16688), (1192, 15904), (1792, 10579), (1988, 9536), (2086, 9088), (2272, 8344), (2384, 7952), (3976, 4768), (4172, 4544)]