20218950

素因数分解:

$2^1\times 3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{881}}^1$

素因数の和:919

約数の個数: 96

約数和(自身を含む): 59058720

約数和(自身を除く): 38839770

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 25, 27, 30, 34, 45, 50, 51, 54, 75, 85, 90, 102, 135, 150, 153, 170, 225, 255, 270, 306, 425, 450, 459, 510, 675, 765, 850, 881, 918, 1275, 1350, 1530, 1762, 2295, 2550, 2643, 3825, 4405, 4590, 5286, 7650, 7929, 8810, 11475, 13215, 14977, 15858, 22025, 22950, 23787, 26430, 29954, 39645, 44050, 44931, 47574, 66075, 74885, 79290, 89862, 118935, 132150, 134793, 149770, 198225, 224655, 237870, 269586, 374425, 396450, 404379, 449310, 594675, 673965, 748850, 808758, 1123275, 1189350, 1347930, 2021895, 2246550, 3369825, 4043790, 6739650, 10109475, 20218950]

約数ペア:

[(1, 20218950), (2, 10109475), (3, 6739650), (5, 4043790), (6, 3369825), (9, 2246550), (10, 2021895), (15, 1347930), (17, 1189350), (18, 1123275), (25, 808758), (27, 748850), (30, 673965), (34, 594675), (45, 449310), (50, 404379), (51, 396450), (54, 374425), (75, 269586), (85, 237870), (90, 224655), (102, 198225), (135, 149770), (150, 134793), (153, 132150), (170, 118935), (225, 89862), (255, 79290), (270, 74885), (306, 66075), (425, 47574), (450, 44931), (459, 44050), (510, 39645), (675, 29954), (765, 26430), (850, 23787), (881, 22950), (918, 22025), (1275, 15858), (1350, 14977), (1530, 13215), (1762, 11475), (2295, 8810), (2550, 7929), (2643, 7650), (3825, 5286), (4405, 4590)]