81239175

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:417

約数の個数: 72

約数和(自身を含む): 156860496

約数和(自身を除く): 75621321

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 67, 75, 85, 153, 201, 225, 255, 317, 335, 425, 603, 765, 951, 1005, 1139, 1275, 1585, 1675, 2853, 3015, 3417, 3825, 4755, 5025, 5389, 5695, 7925, 10251, 14265, 15075, 16167, 17085, 21239, 23775, 26945, 28475, 48501, 51255, 63717, 71325, 80835, 85425, 106195, 134725, 191151, 242505, 256275, 318585, 361063, 404175, 530975, 955755, 1083189, 1212525, 1592925, 1805315, 3249567, 4778775, 5415945, 9026575, 16247835, 27079725, 81239175]

約数ペア:

[(1, 81239175), (3, 27079725), (5, 16247835), (9, 9026575), (15, 5415945), (17, 4778775), (25, 3249567), (45, 1805315), (51, 1592925), (67, 1212525), (75, 1083189), (85, 955755), (153, 530975), (201, 404175), (225, 361063), (255, 318585), (317, 256275), (335, 242505), (425, 191151), (603, 134725), (765, 106195), (951, 85425), (1005, 80835), (1139, 71325), (1275, 63717), (1585, 51255), (1675, 48501), (2853, 28475), (3015, 26945), (3417, 23775), (3825, 21239), (4755, 17085), (5025, 16167), (5389, 15075), (5695, 14265), (7925, 10251)]