18453780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1$

素因数の和:825

約数の個数: 72

約数和(自身を含む): 56419272

約数和(自身を除く): 37965492

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 653, 785, 942, 1306, 1413, 1570, 1884, 1959, 2355, 2612, 2826, 3140, 3265, 3918, 4710, 5652, 5877, 6530, 7065, 7836, 9420, 9795, 11754, 13060, 14130, 19590, 23508, 28260, 29385, 39180, 58770, 102521, 117540, 205042, 307563, 410084, 512605, 615126, 922689, 1025210, 1230252, 1537815, 1845378, 2050420, 3075630, 3690756, 4613445, 6151260, 9226890, 18453780]

約数ペア:

[(1, 18453780), (2, 9226890), (3, 6151260), (4, 4613445), (5, 3690756), (6, 3075630), (9, 2050420), (10, 1845378), (12, 1537815), (15, 1230252), (18, 1025210), (20, 922689), (30, 615126), (36, 512605), (45, 410084), (60, 307563), (90, 205042), (157, 117540), (180, 102521), (314, 58770), (471, 39180), (628, 29385), (653, 28260), (785, 23508), (942, 19590), (1306, 14130), (1413, 13060), (1570, 11754), (1884, 9795), (1959, 9420), (2355, 7836), (2612, 7065), (2826, 6530), (3140, 5877), (3265, 5652), (3918, 4710)]