505540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 1274112

約数和(自身を除く): 768572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 157, 161, 230, 314, 322, 460, 628, 644, 785, 805, 1099, 1570, 1610, 2198, 3140, 3220, 3611, 4396, 5495, 7222, 10990, 14444, 18055, 21980, 25277, 36110, 50554, 72220, 101108, 126385, 252770, 505540]

約数ペア:

[(1, 505540), (2, 252770), (4, 126385), (5, 101108), (7, 72220), (10, 50554), (14, 36110), (20, 25277), (23, 21980), (28, 18055), (35, 14444), (46, 10990), (70, 7222), (92, 5495), (115, 4396), (140, 3611), (157, 3220), (161, 3140), (230, 2198), (314, 1610), (322, 1570), (460, 1099), (628, 805), (644, 785)]