17928920

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 41990400

約数和(自身を除く): 24061480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 71, 107, 118, 142, 214, 236, 284, 295, 355, 428, 472, 535, 568, 590, 710, 856, 1070, 1180, 1420, 2140, 2360, 2840, 4189, 4280, 6313, 7597, 8378, 12626, 15194, 16756, 20945, 25252, 30388, 31565, 33512, 37985, 41890, 50504, 60776, 63130, 75970, 83780, 126260, 151940, 167560, 252520, 303880, 448223, 896446, 1792892, 2241115, 3585784, 4482230, 8964460, 17928920]

約数ペア:

[(1, 17928920), (2, 8964460), (4, 4482230), (5, 3585784), (8, 2241115), (10, 1792892), (20, 896446), (40, 448223), (59, 303880), (71, 252520), (107, 167560), (118, 151940), (142, 126260), (214, 83780), (236, 75970), (284, 63130), (295, 60776), (355, 50504), (428, 41890), (472, 37985), (535, 33512), (568, 31565), (590, 30388), (710, 25252), (856, 20945), (1070, 16756), (1180, 15194), (1420, 12626), (2140, 8378), (2360, 7597), (2840, 6313), (4189, 4280)]