4374020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 10617600

約数和(自身を除く): 6243580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 199, 314, 398, 628, 785, 796, 995, 1099, 1393, 1570, 1990, 2198, 2786, 3140, 3980, 4396, 5495, 5572, 6965, 10990, 13930, 21980, 27860, 31243, 62486, 124972, 156215, 218701, 312430, 437402, 624860, 874804, 1093505, 2187010, 4374020]

約数ペア:

[(1, 4374020), (2, 2187010), (4, 1093505), (5, 874804), (7, 624860), (10, 437402), (14, 312430), (20, 218701), (28, 156215), (35, 124972), (70, 62486), (140, 31243), (157, 27860), (199, 21980), (314, 13930), (398, 10990), (628, 6965), (785, 5572), (796, 5495), (995, 4396), (1099, 3980), (1393, 3140), (1570, 2786), (1990, 2198)]