20245725

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 39461760

約数和(自身を除く): 19216035

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 67, 75, 79, 85, 153, 201, 225, 237, 255, 335, 395, 425, 603, 711, 765, 1005, 1139, 1185, 1275, 1343, 1675, 1975, 3015, 3417, 3555, 3825, 4029, 5025, 5293, 5695, 5925, 6715, 10251, 12087, 15075, 15879, 17085, 17775, 20145, 26465, 28475, 33575, 47637, 51255, 60435, 79395, 85425, 89981, 100725, 132325, 238185, 256275, 269943, 302175, 396975, 449905, 809829, 1190925, 1349715, 2249525, 4049145, 6748575, 20245725]

約数ペア:

[(1, 20245725), (3, 6748575), (5, 4049145), (9, 2249525), (15, 1349715), (17, 1190925), (25, 809829), (45, 449905), (51, 396975), (67, 302175), (75, 269943), (79, 256275), (85, 238185), (153, 132325), (201, 100725), (225, 89981), (237, 85425), (255, 79395), (335, 60435), (395, 51255), (425, 47637), (603, 33575), (711, 28475), (765, 26465), (1005, 20145), (1139, 17775), (1185, 17085), (1275, 15879), (1343, 15075), (1675, 12087), (1975, 10251), (3015, 6715), (3417, 5925), (3555, 5695), (3825, 5293), (4029, 5025)]