9975780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{353}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 30538872

約数和(自身を除く): 20563092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 353, 471, 628, 706, 785, 942, 1059, 1412, 1413, 1570, 1765, 1884, 2118, 2355, 2826, 3140, 3177, 3530, 4236, 4710, 5295, 5652, 6354, 7060, 7065, 9420, 10590, 12708, 14130, 15885, 21180, 28260, 31770, 55421, 63540, 110842, 166263, 221684, 277105, 332526, 498789, 554210, 665052, 831315, 997578, 1108420, 1662630, 1995156, 2493945, 3325260, 4987890, 9975780]

約数ペア:

[(1, 9975780), (2, 4987890), (3, 3325260), (4, 2493945), (5, 1995156), (6, 1662630), (9, 1108420), (10, 997578), (12, 831315), (15, 665052), (18, 554210), (20, 498789), (30, 332526), (36, 277105), (45, 221684), (60, 166263), (90, 110842), (157, 63540), (180, 55421), (314, 31770), (353, 28260), (471, 21180), (628, 15885), (706, 14130), (785, 12708), (942, 10590), (1059, 9420), (1412, 7065), (1413, 7060), (1570, 6354), (1765, 5652), (1884, 5295), (2118, 4710), (2355, 4236), (2826, 3530), (3140, 3177)]