387470440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{197689}}^1$

素因数の和:197714

約数の個数: 48

約数和(自身を含む): 1014149700

約数和(自身を除く): 626679260

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 197689, 395378, 790756, 988445, 1383823, 1581512, 1976890, 2767646, 3953780, 5535292, 6919115, 7907560, 9686761, 11070584, 13838230, 19373522, 27676460, 38747044, 48433805, 55352920, 77494088, 96867610, 193735220, 387470440]

約数ペア:

[(1, 387470440), (2, 193735220), (4, 96867610), (5, 77494088), (7, 55352920), (8, 48433805), (10, 38747044), (14, 27676460), (20, 19373522), (28, 13838230), (35, 11070584), (40, 9686761), (49, 7907560), (56, 6919115), (70, 5535292), (98, 3953780), (140, 2767646), (196, 1976890), (245, 1581512), (280, 1383823), (392, 988445), (490, 790756), (980, 395378), (1960, 197689)]