4987890

素因数分解:

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

素因数の和:523

約数の個数: 48

約数和(自身を含む): 13088088

約数和(自身を除く): 8100198

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 157, 314, 353, 471, 706, 785, 942, 1059, 1413, 1570, 1765, 2118, 2355, 2826, 3177, 3530, 4710, 5295, 6354, 7065, 10590, 14130, 15885, 31770, 55421, 110842, 166263, 277105, 332526, 498789, 554210, 831315, 997578, 1662630, 2493945, 4987890]

約数ペア:

[(1, 4987890), (2, 2493945), (3, 1662630), (5, 997578), (6, 831315), (9, 554210), (10, 498789), (15, 332526), (18, 277105), (30, 166263), (45, 110842), (90, 55421), (157, 31770), (314, 15885), (353, 14130), (471, 10590), (706, 7065), (785, 6354), (942, 5295), (1059, 4710), (1413, 3530), (1570, 3177), (1765, 2826), (2118, 2355)]